/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=NARROWEST --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_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:53:48,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:53:48,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:53:48,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:53:48,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:53:48,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:53:48,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:53:48,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:53:48,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:53:48,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:53:48,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:53:48,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:53:48,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:53:48,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:53:49,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:53:49,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:53:49,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:53:49,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:53:49,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:53:49,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:53:49,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:53:49,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:53:49,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:53:49,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:53:49,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:53:49,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:53:49,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:53:49,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:53:49,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:53:49,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:53:49,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:53:49,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:53:49,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:53:49,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:53:49,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:53:49,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:53:49,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:53:49,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:53:49,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:53:49,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:53:49,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:53:49,050 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 [2020-10-13 08:53:49,070 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:53:49,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:53:49,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:53:49,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:53:49,072 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:53:49,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:53:49,073 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:53:49,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:53:49,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:53:49,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:53:49,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:53:49,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:53:49,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:53:49,074 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:53:49,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:53:49,074 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:53:49,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:53:49,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:53:49,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:53:49,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:53:49,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:53:49,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:53:49,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:53:49,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:53:49,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:53:49,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:53:49,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:53:49,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:53:49,077 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:53:49,077 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 08:53:49,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:53:49,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:53:49,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:53:49,383 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:53:49,384 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:53:49,384 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label48.c [2020-10-13 08:53:49,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f1fc0ada/92224faa741e48cfadfde76529f2a3c4/FLAGabb13ede4 [2020-10-13 08:53:50,125 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:53:50,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label48.c [2020-10-13 08:53:50,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f1fc0ada/92224faa741e48cfadfde76529f2a3c4/FLAGabb13ede4 [2020-10-13 08:53:50,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f1fc0ada/92224faa741e48cfadfde76529f2a3c4 [2020-10-13 08:53:50,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:53:50,387 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:53:50,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:53:50,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:53:50,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:53:50,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:53:50" (1/1) ... [2020-10-13 08:53:50,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0614b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:50, skipping insertion in model container [2020-10-13 08:53:50,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:53:50" (1/1) ... [2020-10-13 08:53:50,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:53:50,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:53:51,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:53:51,039 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:53:51,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:53:51,234 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:53:51,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51 WrapperNode [2020-10-13 08:53:51,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:53:51,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:53:51,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:53:51,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:53:51,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:53:51,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:53:51,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:53:51,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:53:51,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (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 [2020-10-13 08:53:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:53:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:53:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:53:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:53:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:53:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:53:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:53:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:53:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:53:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:53:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:53:53,269 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:53:53,269 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:53:53,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:53:53 BoogieIcfgContainer [2020-10-13 08:53:53,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:53:53,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:53:53,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:53:53,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:53:53,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:53:50" (1/3) ... [2020-10-13 08:53:53,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481bbf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:53:53, skipping insertion in model container [2020-10-13 08:53:53,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (2/3) ... [2020-10-13 08:53:53,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481bbf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:53:53, skipping insertion in model container [2020-10-13 08:53:53,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:53:53" (3/3) ... [2020-10-13 08:53:53,286 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label48.c [2020-10-13 08:53:53,298 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:53:53,307 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:53:53,323 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:53:53,352 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:53:53,352 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:53:53,352 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:53:53,352 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:53:53,353 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:53:53,353 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:53:53,353 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:53:53,353 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:53:53,378 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:53:53,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-13 08:53:53,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:53:53,388 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] [2020-10-13 08:53:53,388 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:53:53,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:53:53,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1044438083, now seen corresponding path program 1 times [2020-10-13 08:53:53,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:53:53,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426769839] [2020-10-13 08:53:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:53:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:53,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:54,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:54,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 08:53:54,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:54,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-13 08:53:54,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:54,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:53:54,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:53:54,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 08:53:54,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:53:54,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:53:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:54,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:54,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:54,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:53:54,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:54,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:53:54,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:53:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:53:54,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:53:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:53:54,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426769839] [2020-10-13 08:53:54,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:53:54,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 08:53:54,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885008011] [2020-10-13 08:53:54,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 08:53:54,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:53:54,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 08:53:54,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 08:53:54,243 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-13 08:53:55,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:53:55,957 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-13 08:53:55,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:53:55,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-13 08:53:55,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:53:55,976 INFO L225 Difference]: With dead ends: 698 [2020-10-13 08:53:55,976 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:53:55,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:53:56,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:53:56,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-13 08:53:56,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 08:53:56,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-13 08:53:56,073 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 44 [2020-10-13 08:53:56,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:53:56,074 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-13 08:53:56,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 08:53:56,074 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-13 08:53:56,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 08:53:56,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:53:56,080 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:53:56,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:53:56,081 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:53:56,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:53:56,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1151253645, now seen corresponding path program 1 times [2020-10-13 08:53:56,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:53:56,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702902327] [2020-10-13 08:53:56,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:53:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:56,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:56,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:56,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:56,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:56,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 08:53:56,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:53:56,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 820 [2020-10-13 08:53:56,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:56,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:53:56,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:53:56,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:53:56,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:53:57,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:53:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:57,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:57,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:57,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:53:57,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:57,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:53:57,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:57,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:57,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:57,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:57,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:53:57,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:53:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:57,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:57,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:57,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:53:57,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:57,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-13 08:53:57,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:57,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:53:57,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:57,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:53:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:57,243 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:53:57,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702902327] [2020-10-13 08:53:57,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:53:57,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:53:57,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388104972] [2020-10-13 08:53:57,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:53:57,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:53:57,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:53:57,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:53:57,247 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 5 states. [2020-10-13 08:53:58,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:53:58,440 INFO L93 Difference]: Finished difference Result 783 states and 1143 transitions. [2020-10-13 08:53:58,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:53:58,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-10-13 08:53:58,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:53:58,449 INFO L225 Difference]: With dead ends: 783 [2020-10-13 08:53:58,449 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:53:58,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:53:58,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:53:58,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-13 08:53:58,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 08:53:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 506 transitions. [2020-10-13 08:53:58,507 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 506 transitions. Word has length 113 [2020-10-13 08:53:58,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:53:58,513 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 506 transitions. [2020-10-13 08:53:58,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:53:58,514 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 506 transitions. [2020-10-13 08:53:58,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-13 08:53:58,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:53:58,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:53:58,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:53:58,519 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:53:58,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:53:58,520 INFO L82 PathProgramCache]: Analyzing trace with hash -404519995, now seen corresponding path program 1 times [2020-10-13 08:53:58,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:53:58,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715536475] [2020-10-13 08:53:58,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:53:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:58,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:58,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:59,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:59,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 08:53:59,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:53:59,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 923 [2020-10-13 08:53:59,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:59,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:53:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:53:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 08:53:59,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:59,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:53:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:59,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:59,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:59,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:53:59,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:59,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:53:59,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:59,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:59,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:53:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:59,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:59,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:59,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:53:59,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:59,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 08:53:59,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:59,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:53:59,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:59,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:53:59,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:53:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:53:59,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715536475] [2020-10-13 08:53:59,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:53:59,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:53:59,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367943351] [2020-10-13 08:53:59,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:53:59,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:53:59,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:53:59,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:53:59,714 INFO L87 Difference]: Start difference. First operand 376 states and 506 transitions. Second operand 6 states. [2020-10-13 08:54:01,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:01,822 INFO L93 Difference]: Finished difference Result 1118 states and 1570 transitions. [2020-10-13 08:54:01,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:54:01,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2020-10-13 08:54:01,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:01,833 INFO L225 Difference]: With dead ends: 1118 [2020-10-13 08:54:01,834 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:54:01,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:54:01,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:54:01,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:54:01,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:54:01,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 976 transitions. [2020-10-13 08:54:01,894 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 976 transitions. Word has length 117 [2020-10-13 08:54:01,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:01,895 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 976 transitions. [2020-10-13 08:54:01,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:54:01,896 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 976 transitions. [2020-10-13 08:54:01,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-13 08:54:01,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:01,907 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, 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] [2020-10-13 08:54:01,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:54:01,908 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:01,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:01,908 INFO L82 PathProgramCache]: Analyzing trace with hash -870764617, now seen corresponding path program 1 times [2020-10-13 08:54:01,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:01,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144596121] [2020-10-13 08:54:01,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:01,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:02,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:02,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:02,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:07,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:07,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-13 08:54:07,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:54:07,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-13 08:54:07,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:07,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:07,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 08:54:07,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 08:54:07,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:07,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:07,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:07,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:07,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:07,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:07,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:54:07,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:07,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:07,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:07,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:07,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:07,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:07,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:07,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:54:07,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:07,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:07,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:07,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:07,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 08:54:07,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:07,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 08:54:07,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:07,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:07,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:07,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 08:54:07,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:54:07,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144596121] [2020-10-13 08:54:07,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:07,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:07,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820067881] [2020-10-13 08:54:07,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:07,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:07,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:07,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:07,346 INFO L87 Difference]: Start difference. First operand 744 states and 976 transitions. Second operand 5 states. [2020-10-13 08:54:08,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:08,254 INFO L93 Difference]: Finished difference Result 1499 states and 1974 transitions. [2020-10-13 08:54:08,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:08,255 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2020-10-13 08:54:08,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:08,261 INFO L225 Difference]: With dead ends: 1499 [2020-10-13 08:54:08,261 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:54:08,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:54:08,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:54:08,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:54:08,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 972 transitions. [2020-10-13 08:54:08,287 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 972 transitions. Word has length 212 [2020-10-13 08:54:08,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:08,289 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 972 transitions. [2020-10-13 08:54:08,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:08,290 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 972 transitions. [2020-10-13 08:54:08,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-10-13 08:54:08,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:08,295 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:08,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:54:08,295 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:08,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:08,296 INFO L82 PathProgramCache]: Analyzing trace with hash 178432786, now seen corresponding path program 1 times [2020-10-13 08:54:08,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:08,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275402759] [2020-10-13 08:54:08,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:08,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:08,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:08,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:08,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:08,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:13,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:13,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-10-13 08:54:13,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:54:13,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 08:54:13,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:13,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:13,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 08:54:13,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 08:54:13,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:13,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:13,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:13,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:13,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:13,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:13,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:54:13,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:13,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:13,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:13,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:13,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:13,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:13,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:13,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:13,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:13,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:13,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:54:13,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:13,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:13,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:13,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:13,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:13,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:13,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:54:13,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:13,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 08:54:13,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:13,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:13,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:13,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:54:13,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:13,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 08:54:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:13,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:13,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:13,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:13,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:54:13,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:13,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-13 08:54:13,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:13,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:13,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:54:13,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:54:13,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:13,993 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 266 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-13 08:54:13,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275402759] [2020-10-13 08:54:13,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:13,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:54:13,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962643784] [2020-10-13 08:54:13,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:54:13,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:13,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:54:13,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:54:13,996 INFO L87 Difference]: Start difference. First operand 744 states and 972 transitions. Second operand 7 states. [2020-10-13 08:54:15,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:15,217 INFO L93 Difference]: Finished difference Result 1512 states and 1990 transitions. [2020-10-13 08:54:15,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:54:15,218 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 286 [2020-10-13 08:54:15,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:15,224 INFO L225 Difference]: With dead ends: 1512 [2020-10-13 08:54:15,225 INFO L226 Difference]: Without dead ends: 762 [2020-10-13 08:54:15,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:54:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-10-13 08:54:15,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 748. [2020-10-13 08:54:15,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-13 08:54:15,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 974 transitions. [2020-10-13 08:54:15,262 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 974 transitions. Word has length 286 [2020-10-13 08:54:15,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:15,263 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 974 transitions. [2020-10-13 08:54:15,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:54:15,263 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 974 transitions. [2020-10-13 08:54:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-13 08:54:15,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:15,269 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:15,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:54:15,269 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:15,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:15,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1549625964, now seen corresponding path program 1 times [2020-10-13 08:54:15,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:15,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270232058] [2020-10-13 08:54:15,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:15,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:15,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:16,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:16,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 321 [2020-10-13 08:54:16,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:16,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1552 [2020-10-13 08:54:16,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 08:54:16,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:54:16,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-13 08:54:16,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:17,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:17,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:17,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:17,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:17,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:17,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:54:17,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:17,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:17,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:17,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:54:17,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:17,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:17,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:17,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:18,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:18,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:54:18,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:18,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1059 [2020-10-13 08:54:18,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:18,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:54:18,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:54:18,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:54:18,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:19,075 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2020-10-13 08:54:19,418 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2020-10-13 08:54:19,708 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2020-10-13 08:54:20,012 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2020-10-13 08:54:20,324 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2020-10-13 08:54:20,607 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2020-10-13 08:54:21,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:54:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:21,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:21,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:21,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:54:21,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:21,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:54:21,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:21,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:54:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:21,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 74 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 08:54:22,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270232058] [2020-10-13 08:54:22,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:22,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:54:22,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127634671] [2020-10-13 08:54:22,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:54:22,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:22,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:54:22,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:54:22,468 INFO L87 Difference]: Start difference. First operand 748 states and 974 transitions. Second operand 13 states. [2020-10-13 08:54:23,324 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 56 [2020-10-13 08:54:23,814 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 59 [2020-10-13 08:54:24,095 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 58 [2020-10-13 08:54:24,496 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 58 [2020-10-13 08:54:24,781 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 53 [2020-10-13 08:54:25,009 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2020-10-13 08:54:25,244 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 56 [2020-10-13 08:54:25,583 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2020-10-13 08:54:25,858 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2020-10-13 08:54:26,173 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2020-10-13 08:54:26,385 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2020-10-13 08:54:26,701 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2020-10-13 08:54:27,161 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-10-13 08:54:27,628 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2020-10-13 08:54:27,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:27,753 INFO L93 Difference]: Finished difference Result 1681 states and 2186 transitions. [2020-10-13 08:54:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:54:27,758 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 309 [2020-10-13 08:54:27,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:27,763 INFO L225 Difference]: With dead ends: 1681 [2020-10-13 08:54:27,763 INFO L226 Difference]: Without dead ends: 925 [2020-10-13 08:54:27,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:54:27,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2020-10-13 08:54:27,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 919. [2020-10-13 08:54:27,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-10-13 08:54:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1156 transitions. [2020-10-13 08:54:27,791 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1156 transitions. Word has length 309 [2020-10-13 08:54:27,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:27,791 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1156 transitions. [2020-10-13 08:54:27,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:54:27,791 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1156 transitions. [2020-10-13 08:54:27,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-13 08:54:27,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:27,798 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:27,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:54:27,798 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:27,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:27,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1016600804, now seen corresponding path program 1 times [2020-10-13 08:54:27,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:27,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777107984] [2020-10-13 08:54:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:27,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:27,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:28,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:28,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:32,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:32,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-13 08:54:32,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:54:32,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4487 [2020-10-13 08:54:32,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 08:54:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:54:32,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:32,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:32,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:32,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:32,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:32,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:32,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:54:32,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:32,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:32,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:32,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:32,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:32,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:32,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:32,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:32,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 08:54:32,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:54:32,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:32,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:32,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:32,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 08:54:32,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:32,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 08:54:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:32,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:32,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:32,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:32,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:54:32,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:32,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-13 08:54:32,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:32,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:32,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:54:32,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:54:32,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:32,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-13 08:54:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:32,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:32,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:32,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:54:32,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:54:32,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:54:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:32,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 196 proven. 85 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-13 08:54:33,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777107984] [2020-10-13 08:54:33,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:33,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:54:33,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646322141] [2020-10-13 08:54:33,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:54:33,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:33,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:54:33,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:54:33,254 INFO L87 Difference]: Start difference. First operand 919 states and 1156 transitions. Second operand 7 states. [2020-10-13 08:54:34,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:34,541 INFO L93 Difference]: Finished difference Result 1730 states and 2222 transitions. [2020-10-13 08:54:34,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:54:34,547 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 326 [2020-10-13 08:54:34,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:34,552 INFO L225 Difference]: With dead ends: 1730 [2020-10-13 08:54:34,553 INFO L226 Difference]: Without dead ends: 883 [2020-10-13 08:54:34,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:54:34,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-10-13 08:54:34,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 859. [2020-10-13 08:54:34,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-10-13 08:54:34,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1006 transitions. [2020-10-13 08:54:34,586 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1006 transitions. Word has length 326 [2020-10-13 08:54:34,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:34,587 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1006 transitions. [2020-10-13 08:54:34,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:54:34,587 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1006 transitions. [2020-10-13 08:54:34,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2020-10-13 08:54:34,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:34,596 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:34,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:54:34,596 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:34,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:34,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1931617185, now seen corresponding path program 1 times [2020-10-13 08:54:34,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:34,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426511257] [2020-10-13 08:54:34,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:34,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:34,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:34,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:37,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:37,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 433 [2020-10-13 08:54:37,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:54:37,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2771 [2020-10-13 08:54:37,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:54:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 08:54:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-13 08:54:37,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:37,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:37,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:37,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:37,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:37,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:37,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:54:37,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:37,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:37,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:37,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:37,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:37,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:37,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:37,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:54:37,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:37,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 08:54:37,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:37,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 08:54:37,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:37,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:54:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:37,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:37,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:38,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:38,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:54:38,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:38,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-13 08:54:38,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:54:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:54:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:54:38,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:38,664 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2020-10-13 08:54:38,831 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-10-13 08:54:39,000 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-10-13 08:54:39,188 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2020-10-13 08:54:39,384 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-10-13 08:54:39,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2020-10-13 08:54:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:39,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:39,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:39,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:54:39,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:39,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:54:39,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:54:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:39,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 222 proven. 85 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-13 08:54:40,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426511257] [2020-10-13 08:54:40,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:40,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:54:40,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149515600] [2020-10-13 08:54:40,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:54:40,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:40,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:54:40,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:54:40,625 INFO L87 Difference]: Start difference. First operand 859 states and 1006 transitions. Second operand 13 states. [2020-10-13 08:54:41,189 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-13 08:54:41,358 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-13 08:54:41,589 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-13 08:54:41,781 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-13 08:54:42,527 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-10-13 08:54:42,706 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-10-13 08:54:42,970 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-10-13 08:54:43,183 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-13 08:54:43,548 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-13 08:54:43,902 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2020-10-13 08:54:44,237 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-10-13 08:54:44,556 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-13 08:54:44,873 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2020-10-13 08:54:45,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:45,311 INFO L93 Difference]: Finished difference Result 1799 states and 2123 transitions. [2020-10-13 08:54:45,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:54:45,314 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 419 [2020-10-13 08:54:45,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:45,319 INFO L225 Difference]: With dead ends: 1799 [2020-10-13 08:54:45,319 INFO L226 Difference]: Without dead ends: 978 [2020-10-13 08:54:45,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:54:45,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2020-10-13 08:54:45,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 968. [2020-10-13 08:54:45,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 968 states. [2020-10-13 08:54:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1118 transitions. [2020-10-13 08:54:45,347 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1118 transitions. Word has length 419 [2020-10-13 08:54:45,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:45,348 INFO L479 AbstractCegarLoop]: Abstraction has 968 states and 1118 transitions. [2020-10-13 08:54:45,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:54:45,348 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1118 transitions. [2020-10-13 08:54:45,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2020-10-13 08:54:45,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:45,354 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, 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, 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] [2020-10-13 08:54:45,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:54:45,354 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:45,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:45,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1196835181, now seen corresponding path program 1 times [2020-10-13 08:54:45,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:45,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392371613] [2020-10-13 08:54:45,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:45,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:45,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:47,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:47,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 544 [2020-10-13 08:54:47,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:47,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2012 [2020-10-13 08:54:47,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:54:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-13 08:54:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:54:47,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:47,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:47,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:47,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:47,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:47,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:47,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:54:47,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:47,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:47,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:47,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:47,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:47,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:47,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:47,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:47,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:54:47,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:47,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:54:47,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:47,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:47,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:47,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:47,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:47,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:54:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:47,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:47,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:47,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:54:47,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:47,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:54:47,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:47,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:47,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:47,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 08:54:47,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:47,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:54:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:47,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:47,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:48,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:48,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:54:48,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:48,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 757 [2020-10-13 08:54:48,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:54:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:54:48,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:48,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2020-10-13 08:54:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:48,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:48,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:48,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:54:48,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:54:48,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:54:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:48,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 374 proven. 85 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2020-10-13 08:54:48,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392371613] [2020-10-13 08:54:48,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:48,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:54:48,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200081700] [2020-10-13 08:54:48,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:54:48,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:48,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:54:48,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:54:48,833 INFO L87 Difference]: Start difference. First operand 968 states and 1118 transitions. Second operand 8 states. [2020-10-13 08:54:50,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:50,611 INFO L93 Difference]: Finished difference Result 2035 states and 2373 transitions. [2020-10-13 08:54:50,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:54:50,612 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 528 [2020-10-13 08:54:50,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:50,618 INFO L225 Difference]: With dead ends: 2035 [2020-10-13 08:54:50,618 INFO L226 Difference]: Without dead ends: 1180 [2020-10-13 08:54:50,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:54:50,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2020-10-13 08:54:50,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1154. [2020-10-13 08:54:50,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1154 states. [2020-10-13 08:54:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1309 transitions. [2020-10-13 08:54:50,652 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1309 transitions. Word has length 528 [2020-10-13 08:54:50,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:50,653 INFO L479 AbstractCegarLoop]: Abstraction has 1154 states and 1309 transitions. [2020-10-13 08:54:50,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:54:50,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1309 transitions. [2020-10-13 08:54:50,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2020-10-13 08:54:50,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:50,660 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, 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, 3, 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] [2020-10-13 08:54:50,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:54:50,661 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:50,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:50,661 INFO L82 PathProgramCache]: Analyzing trace with hash 455301041, now seen corresponding path program 1 times [2020-10-13 08:54:50,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:50,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462171808] [2020-10-13 08:54:50,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:50,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:51,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:51,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:54,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:54,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 663 [2020-10-13 08:54:54,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:54:54,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3548 [2020-10-13 08:54:54,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:54:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-13 08:54:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-13 08:54:54,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:54,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:54,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:54,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:54,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:54,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:54,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:54:54,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:54,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:54,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:54,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:54,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:54,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:54,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:54,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:54,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:54:54,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:54,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:54:54,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:54,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:54,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:54,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:54,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:54,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:54:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:54,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:54,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:54,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:54:54,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:54,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:54:54,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:54,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:54,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:54,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:54,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:54,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:54:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:54,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:54,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:54,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:54:54,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:54,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 08:54:54,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:54,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:54,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:54,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-13 08:54:54,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:54,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:54:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:54,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:54,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:55,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:55,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:54:55,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-10-13 08:54:55,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:54:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:54:55,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:55,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-13 08:54:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:55,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:55,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:55,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:54:55,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:55,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:54:55,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:55,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:55,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:54:55,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:55,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:55,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 534 proven. 85 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2020-10-13 08:54:55,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462171808] [2020-10-13 08:54:55,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:55,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:54:55,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263083259] [2020-10-13 08:54:55,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:54:55,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:55,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:54:55,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:54:55,425 INFO L87 Difference]: Start difference. First operand 1154 states and 1309 transitions. Second operand 8 states. [2020-10-13 08:54:57,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:57,247 INFO L93 Difference]: Finished difference Result 2401 states and 2748 transitions. [2020-10-13 08:54:57,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:54:57,247 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 645 [2020-10-13 08:54:57,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:57,254 INFO L225 Difference]: With dead ends: 2401 [2020-10-13 08:54:57,254 INFO L226 Difference]: Without dead ends: 1360 [2020-10-13 08:54:57,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:54:57,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2020-10-13 08:54:57,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1336. [2020-10-13 08:54:57,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2020-10-13 08:54:57,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1494 transitions. [2020-10-13 08:54:57,292 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1494 transitions. Word has length 645 [2020-10-13 08:54:57,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:57,293 INFO L479 AbstractCegarLoop]: Abstraction has 1336 states and 1494 transitions. [2020-10-13 08:54:57,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:54:57,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1494 transitions. [2020-10-13 08:54:57,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2020-10-13 08:54:57,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:57,302 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, 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, 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, 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] [2020-10-13 08:54:57,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:54:57,303 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:57,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:57,303 INFO L82 PathProgramCache]: Analyzing trace with hash -438971547, now seen corresponding path program 1 times [2020-10-13 08:54:57,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:57,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949774778] [2020-10-13 08:54:57,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:57,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:59,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:59,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:02,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:02,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 746 [2020-10-13 08:55:02,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:02,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-13 08:55:02,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:02,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:55:02,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 433 [2020-10-13 08:55:02,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:55:02,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:02,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:02,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:02,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:02,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:02,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:02,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:55:02,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:02,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:02,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:02,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:02,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:02,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:02,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:02,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:55:02,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:55:02,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:02,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:55:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:02,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:02,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:02,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:55:02,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:02,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:55:02,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:02,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:02,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:02,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:02,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:02,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:55:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:02,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:02,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:02,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:55:02,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:02,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:55:02,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:02,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:02,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:55:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:02,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:02,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:02,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:55:02,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:02,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:55:02,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:02,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:02,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:02,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:55:02,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:02,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:55:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:02,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:02,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:03,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:03,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:03,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-10-13 08:55:03,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:55:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:55:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:03,703 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 44 [2020-10-13 08:55:03,962 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2020-10-13 08:55:04,239 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 80 [2020-10-13 08:55:04,533 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2020-10-13 08:55:04,854 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2020-10-13 08:55:05,197 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2020-10-13 08:55:05,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-13 08:55:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:05,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:05,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:05,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:55:05,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:05,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:55:05,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:05,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:05,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:55:05,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:05,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:08,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1635 backedges. 658 proven. 85 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2020-10-13 08:55:08,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949774778] [2020-10-13 08:55:08,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:08,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:55:08,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744537656] [2020-10-13 08:55:08,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:55:08,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:08,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:55:08,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:55:08,380 INFO L87 Difference]: Start difference. First operand 1336 states and 1494 transitions. Second operand 13 states. [2020-10-13 08:55:09,140 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2020-10-13 08:55:09,675 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 93 [2020-10-13 08:55:10,038 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2020-10-13 08:55:10,260 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2020-10-13 08:55:10,497 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2020-10-13 08:55:11,012 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2020-10-13 08:55:11,341 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 97 [2020-10-13 08:55:11,627 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 63 [2020-10-13 08:55:11,820 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-13 08:55:12,496 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 55 [2020-10-13 08:55:13,056 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 61 [2020-10-13 08:55:13,291 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 64 [2020-10-13 08:55:13,550 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2020-10-13 08:55:14,131 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2020-10-13 08:55:14,475 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 76 [2020-10-13 08:55:15,101 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 101 [2020-10-13 08:55:15,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:15,275 INFO L93 Difference]: Finished difference Result 2751 states and 3099 transitions. [2020-10-13 08:55:15,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 08:55:15,277 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 726 [2020-10-13 08:55:15,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:15,285 INFO L225 Difference]: With dead ends: 2751 [2020-10-13 08:55:15,285 INFO L226 Difference]: Without dead ends: 1521 [2020-10-13 08:55:15,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=271, Invalid=659, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:55:15,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-10-13 08:55:15,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1515. [2020-10-13 08:55:15,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1515 states. [2020-10-13 08:55:15,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1679 transitions. [2020-10-13 08:55:15,324 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1679 transitions. Word has length 726 [2020-10-13 08:55:15,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:15,325 INFO L479 AbstractCegarLoop]: Abstraction has 1515 states and 1679 transitions. [2020-10-13 08:55:15,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:55:15,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1679 transitions. [2020-10-13 08:55:15,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2020-10-13 08:55:15,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:15,336 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, 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, 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] [2020-10-13 08:55:15,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:55:15,336 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:15,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:15,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1515830753, now seen corresponding path program 1 times [2020-10-13 08:55:15,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:15,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206911017] [2020-10-13 08:55:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:15,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:15,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:18,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 824 [2020-10-13 08:55:18,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:18,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2912 [2020-10-13 08:55:18,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:18,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:55:18,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-13 08:55:18,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-13 08:55:18,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:18,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:18,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:18,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:18,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:18,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:55:18,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:18,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:18,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:18,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:18,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:55:18,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:18,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:55:18,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:18,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:18,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:18,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:18,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:18,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:55:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:18,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:18,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:55:18,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:18,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:55:18,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:18,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:18,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:55:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:18,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:18,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:55:18,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:18,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:55:18,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:18,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:18,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:18,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:55:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:18,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:19,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:19,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:55:19,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:19,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-13 08:55:19,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:19,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:19,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:19,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:55:19,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:19,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:55:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:19,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:19,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:19,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:19,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:19,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:19,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-10-13 08:55:19,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:55:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:55:19,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:20,149 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-10-13 08:55:20,401 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2020-10-13 08:55:20,692 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2020-10-13 08:55:20,969 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2020-10-13 08:55:21,292 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2020-10-13 08:55:21,577 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2020-10-13 08:55:22,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-13 08:55:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:22,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:22,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:22,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:55:22,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:22,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:55:22,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:22,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:22,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:55:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:22,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1811 backedges. 736 proven. 85 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2020-10-13 08:55:24,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206911017] [2020-10-13 08:55:24,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:24,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:55:24,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728232166] [2020-10-13 08:55:24,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:55:24,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:24,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:55:24,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:55:24,826 INFO L87 Difference]: Start difference. First operand 1515 states and 1679 transitions. Second operand 13 states. [2020-10-13 08:55:25,461 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2020-10-13 08:55:26,038 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2020-10-13 08:55:26,288 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 71 [2020-10-13 08:55:26,506 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2020-10-13 08:55:26,815 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2020-10-13 08:55:27,132 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 82 [2020-10-13 08:55:27,386 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 57 [2020-10-13 08:55:27,578 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2020-10-13 08:55:28,137 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 54 [2020-10-13 08:55:28,735 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 60 [2020-10-13 08:55:29,029 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 63 [2020-10-13 08:55:29,281 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 58 [2020-10-13 08:55:29,667 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 58 [2020-10-13 08:55:30,004 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 61 [2020-10-13 08:55:30,470 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-13 08:55:30,914 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2020-10-13 08:55:31,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:31,034 INFO L93 Difference]: Finished difference Result 3111 states and 3473 transitions. [2020-10-13 08:55:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 08:55:31,039 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 804 [2020-10-13 08:55:31,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:31,046 INFO L225 Difference]: With dead ends: 3111 [2020-10-13 08:55:31,046 INFO L226 Difference]: Without dead ends: 1698 [2020-10-13 08:55:31,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=266, Invalid=664, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:55:31,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2020-10-13 08:55:31,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1690. [2020-10-13 08:55:31,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1690 states. [2020-10-13 08:55:31,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 1859 transitions. [2020-10-13 08:55:31,090 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 1859 transitions. Word has length 804 [2020-10-13 08:55:31,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:31,091 INFO L479 AbstractCegarLoop]: Abstraction has 1690 states and 1859 transitions. [2020-10-13 08:55:31,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:55:31,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 1859 transitions. [2020-10-13 08:55:31,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2020-10-13 08:55:31,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:31,103 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, 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, 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, 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] [2020-10-13 08:55:31,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:55:31,103 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:31,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:31,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1012079857, now seen corresponding path program 1 times [2020-10-13 08:55:31,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:31,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420729842] [2020-10-13 08:55:31,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:31,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:31,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:34,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:34,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 925 [2020-10-13 08:55:34,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:34,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2946 [2020-10-13 08:55:34,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:55:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-13 08:55:34,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 08:55:34,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:34,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:34,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:34,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:34,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:34,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:34,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:55:34,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:34,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:34,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:34,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:34,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:34,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:34,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:34,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:55:34,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:34,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:55:34,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:34,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:34,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:55:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:34,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:34,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:34,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:55:34,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:34,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:55:34,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:34,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:34,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:34,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:34,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:34,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:55:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:34,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:34,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:34,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:55:34,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:34,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:55:34,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:34,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:34,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:34,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:34,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:34,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:55:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:34,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:34,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:34,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:55:34,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:34,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:55:34,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:34,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:34,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:34,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:55:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:34,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:34,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:34,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:55:34,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:34,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 08:55:34,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:34,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:34,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:34,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-13 08:55:34,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:34,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:55:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:34,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:34,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:35,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:35,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:35,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:35,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-10-13 08:55:35,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:35,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:35,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:55:35,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:35,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2020-10-13 08:55:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:35,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:35,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:35,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:55:35,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:35,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:55:35,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:35,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:35,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:55:35,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:35,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:35,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 878 proven. 85 refuted. 0 times theorem prover too weak. 1389 trivial. 0 not checked. [2020-10-13 08:55:35,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420729842] [2020-10-13 08:55:35,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:35,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:55:35,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221925853] [2020-10-13 08:55:35,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:55:35,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:35,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:55:35,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:55:35,818 INFO L87 Difference]: Start difference. First operand 1690 states and 1859 transitions. Second operand 8 states. [2020-10-13 08:55:37,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:37,742 INFO L93 Difference]: Finished difference Result 3475 states and 3853 transitions. [2020-10-13 08:55:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:55:37,747 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 903 [2020-10-13 08:55:37,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:37,754 INFO L225 Difference]: With dead ends: 3475 [2020-10-13 08:55:37,754 INFO L226 Difference]: Without dead ends: 1898 [2020-10-13 08:55:37,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:55:37,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2020-10-13 08:55:37,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1872. [2020-10-13 08:55:37,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1872 states. [2020-10-13 08:55:37,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2043 transitions. [2020-10-13 08:55:37,795 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2043 transitions. Word has length 903 [2020-10-13 08:55:37,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:37,796 INFO L479 AbstractCegarLoop]: Abstraction has 1872 states and 2043 transitions. [2020-10-13 08:55:37,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:55:37,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2043 transitions. [2020-10-13 08:55:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2020-10-13 08:55:37,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:37,809 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, 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, 5, 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, 3, 3, 3, 3, 3, 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] [2020-10-13 08:55:37,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:55:37,810 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:37,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:37,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1101312941, now seen corresponding path program 1 times [2020-10-13 08:55:37,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:37,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495415091] [2020-10-13 08:55:37,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:38,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:38,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:41,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:41,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 999 [2020-10-13 08:55:41,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:41,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3248 [2020-10-13 08:55:41,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:41,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:55:41,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-13 08:55:41,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-13 08:55:41,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:41,475 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 26 [2020-10-13 08:55:41,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:41,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:41,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:41,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:41,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:41,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:55:41,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:41,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:41,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:41,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:41,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:41,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:41,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:55:41,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:41,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:55:41,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:41,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:41,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:41,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:41,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:41,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:55:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:41,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:41,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:41,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:55:41,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:41,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:55:41,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:41,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:41,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:55:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:41,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:41,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:41,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:55:41,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:41,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:55:41,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:41,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:41,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:55:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:41,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:41,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:41,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:55:41,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:55:41,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:41,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:41,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:55:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:41,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:41,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:41,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 08:55:41,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:41,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-13 08:55:41,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:41,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:41,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:41,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-13 08:55:41,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:42,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-13 08:55:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:42,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:42,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:42,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:42,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:42,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 542 [2020-10-13 08:55:42,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:55:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:55:42,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:43,096 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2020-10-13 08:55:43,463 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2020-10-13 08:55:43,794 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2020-10-13 08:55:44,091 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-13 08:55:44,293 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2020-10-13 08:55:44,466 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-13 08:55:44,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-13 08:55:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:44,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:44,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:44,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:55:44,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:44,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:55:44,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:44,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:44,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:55:44,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:44,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2602 backedges. 952 proven. 85 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2020-10-13 08:55:47,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495415091] [2020-10-13 08:55:47,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:47,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:55:47,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926667645] [2020-10-13 08:55:47,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:55:47,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:47,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:55:47,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:55:47,492 INFO L87 Difference]: Start difference. First operand 1872 states and 2043 transitions. Second operand 13 states. [2020-10-13 08:55:48,344 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-13 08:55:48,834 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2020-10-13 08:55:49,060 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 08:55:49,309 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 08:55:49,553 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 08:55:49,806 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 08:55:50,061 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 74 [2020-10-13 08:55:50,276 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2020-10-13 08:55:51,580 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2020-10-13 08:55:51,798 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2020-10-13 08:55:52,025 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2020-10-13 08:55:52,267 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2020-10-13 08:55:52,491 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2020-10-13 08:55:52,723 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 57 [2020-10-13 08:55:53,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:53,104 INFO L93 Difference]: Finished difference Result 3823 states and 4199 transitions. [2020-10-13 08:55:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:55:53,104 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 977 [2020-10-13 08:55:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:53,112 INFO L225 Difference]: With dead ends: 3823 [2020-10-13 08:55:53,112 INFO L226 Difference]: Without dead ends: 2042 [2020-10-13 08:55:53,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=256, Invalid=614, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:55:53,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2020-10-13 08:55:53,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 2034. [2020-10-13 08:55:53,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2034 states. [2020-10-13 08:55:53,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2034 states to 2034 states and 2208 transitions. [2020-10-13 08:55:53,159 INFO L78 Accepts]: Start accepts. Automaton has 2034 states and 2208 transitions. Word has length 977 [2020-10-13 08:55:53,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:53,160 INFO L479 AbstractCegarLoop]: Abstraction has 2034 states and 2208 transitions. [2020-10-13 08:55:53,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:55:53,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2034 states and 2208 transitions. [2020-10-13 08:55:53,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2020-10-13 08:55:53,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:53,176 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, 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, 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, 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] [2020-10-13 08:55:53,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:55:53,177 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:53,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:53,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1864330598, now seen corresponding path program 1 times [2020-10-13 08:55:53,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:53,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905237038] [2020-10-13 08:55:53,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:53,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:54,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:54,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1003 [2020-10-13 08:55:54,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:54,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1362 [2020-10-13 08:55:54,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:54,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:55:54,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-13 08:55:54,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-13 08:55:54,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:54,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:54,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:54,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:54,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:54,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:54,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:55:54,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:54,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:54,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:54,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:54,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:54,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:54,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:54,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:54,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:55:54,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:54,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:55:54,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:54,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:54,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:54,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:54,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:54,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:55:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:54,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:54,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:54,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:55:54,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:54,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:55:54,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:54,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:54,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:55:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:54,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:55,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:55,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:55:55,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:55,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:55:55,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:55,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:55,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:55,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:55,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:55,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:55:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:55,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:55,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:55,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:55:55,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:55,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:55:55,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:55,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:55,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:55,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:55:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:55,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:55,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:55,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:55:55,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:55,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:55:55,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:55,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:55,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:55:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:55,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:55,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:55,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:55:55,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:55,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:55:55,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:55,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:55,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:55,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 08:55:55,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:55,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:55:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:55,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:55,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:55,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:55,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:55,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-13 08:55:55,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:55,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:55:55,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:55,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:55:55,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:55,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:55:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:55,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:55,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:55,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:55:55,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:55,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 08:55:55,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:55:55,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:56,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 1470 proven. 85 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2020-10-13 08:55:56,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905237038] [2020-10-13 08:55:56,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:56,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 08:55:56,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386513640] [2020-10-13 08:55:56,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 08:55:56,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:56,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 08:55:56,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:55:56,117 INFO L87 Difference]: Start difference. First operand 2034 states and 2208 transitions. Second operand 10 states. [2020-10-13 08:55:59,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:59,210 INFO L93 Difference]: Finished difference Result 5208 states and 5856 transitions. [2020-10-13 08:55:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 08:55:59,214 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 979 [2020-10-13 08:55:59,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:59,227 INFO L225 Difference]: With dead ends: 5208 [2020-10-13 08:55:59,227 INFO L226 Difference]: Without dead ends: 3287 [2020-10-13 08:55:59,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2020-10-13 08:55:59,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2020-10-13 08:55:59,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 2786. [2020-10-13 08:55:59,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2786 states. [2020-10-13 08:55:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3168 transitions. [2020-10-13 08:55:59,296 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3168 transitions. Word has length 979 [2020-10-13 08:55:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:59,297 INFO L479 AbstractCegarLoop]: Abstraction has 2786 states and 3168 transitions. [2020-10-13 08:55:59,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 08:55:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3168 transitions. [2020-10-13 08:55:59,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2020-10-13 08:55:59,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:59,312 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 7, 7, 7, 7, 7, 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, 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] [2020-10-13 08:55:59,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:55:59,313 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:59,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:59,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1324242621, now seen corresponding path program 1 times [2020-10-13 08:55:59,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:59,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141094171] [2020-10-13 08:55:59,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:59,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:59,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:00,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:03,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:04,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1011 [2020-10-13 08:56:04,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:04,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 08:56:04,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:56:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 765 [2020-10-13 08:56:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 08:56:04,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:04,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:04,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:04,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:04,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:04,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:56:04,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:04,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:04,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:04,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:04,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:04,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:04,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:04,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:56:04,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:04,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:04,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:04,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:04,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:04,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:04,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:04,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:56:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:04,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:04,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:56:04,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:04,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:04,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:04,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:04,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:04,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:04,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:04,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:56:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:04,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:04,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:56:04,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:04,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:56:04,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:04,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:04,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:56:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:04,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:04,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:56:04,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:04,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:56:04,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:04,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:04,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:04,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:04,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:04,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:56:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:04,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:04,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:56:04,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:04,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:56:04,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:04,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:04,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:04,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:04,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:04,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:56:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:04,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:04,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:56:04,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:04,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:56:04,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:04,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:04,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:04,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:04,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:04,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:56:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:04,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:04,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:56:04,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:04,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:56:04,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:56:04,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:04,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-13 08:56:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:04,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:05,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:05,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:56:05,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-13 08:56:05,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:56:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:05,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 863 [2020-10-13 08:56:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:05,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:05,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:05,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:56:05,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:05,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:56:05,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:05,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:56:05,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:05,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:05,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3472 backedges. 1043 proven. 85 refuted. 0 times theorem prover too weak. 2344 trivial. 0 not checked. [2020-10-13 08:56:05,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141094171] [2020-10-13 08:56:05,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:05,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:56:05,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058220219] [2020-10-13 08:56:05,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:56:05,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:05,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:56:05,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:56:05,975 INFO L87 Difference]: Start difference. First operand 2786 states and 3168 transitions. Second operand 7 states. [2020-10-13 08:56:07,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:07,800 INFO L93 Difference]: Finished difference Result 5691 states and 6512 transitions. [2020-10-13 08:56:07,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:56:07,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 985 [2020-10-13 08:56:07,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:07,813 INFO L225 Difference]: With dead ends: 5691 [2020-10-13 08:56:07,814 INFO L226 Difference]: Without dead ends: 2828 [2020-10-13 08:56:07,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:56:07,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2020-10-13 08:56:07,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2780. [2020-10-13 08:56:07,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2780 states. [2020-10-13 08:56:07,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 3106 transitions. [2020-10-13 08:56:07,884 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 3106 transitions. Word has length 985 [2020-10-13 08:56:07,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:07,885 INFO L479 AbstractCegarLoop]: Abstraction has 2780 states and 3106 transitions. [2020-10-13 08:56:07,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:56:07,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 3106 transitions. [2020-10-13 08:56:07,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1092 [2020-10-13 08:56:07,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:07,904 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 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, 1] [2020-10-13 08:56:07,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:56:07,905 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:07,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:07,905 INFO L82 PathProgramCache]: Analyzing trace with hash 2046751113, now seen corresponding path program 1 times [2020-10-13 08:56:07,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:07,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537998942] [2020-10-13 08:56:07,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:08,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:08,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:10,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1117 [2020-10-13 08:56:10,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:10,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2411 [2020-10-13 08:56:10,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:10,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:10,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 985 [2020-10-13 08:56:10,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:56:10,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:10,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:10,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:10,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:10,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:10,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:56:10,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:10,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:10,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:10,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:10,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:56:10,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:10,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:10,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:56:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:10,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:10,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:56:10,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:10,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:10,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:10,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:10,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:10,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:56:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:10,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:10,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:56:10,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:10,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:56:10,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:10,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:10,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:10,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:10,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:10,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:56:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:10,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:10,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:56:10,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:10,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:56:10,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:10,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:10,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:10,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:10,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:10,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:56:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:10,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:10,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:56:10,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:10,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:56:10,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:10,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:10,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:10,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:10,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:10,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:56:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:10,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:10,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:56:10,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:10,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 08:56:10,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:10,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:56:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:10,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:10,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:10,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:10,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:56:10,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:10,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:10,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:10,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:10,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:10,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:56:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:11,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:11,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:11,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:56:11,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:11,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:56:11,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:11,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:11,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:11,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 08:56:11,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:11,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-13 08:56:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:11,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:11,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:11,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:56:11,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:11,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 08:56:11,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:11,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:11,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:11,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:56:11,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3756 backedges. 1017 proven. 2 refuted. 0 times theorem prover too weak. 2737 trivial. 0 not checked. [2020-10-13 08:56:11,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537998942] [2020-10-13 08:56:11,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:11,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:56:11,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314131602] [2020-10-13 08:56:11,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:56:11,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:11,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:56:11,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:56:11,753 INFO L87 Difference]: Start difference. First operand 2780 states and 3106 transitions. Second operand 7 states. [2020-10-13 08:56:13,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:13,377 INFO L93 Difference]: Finished difference Result 6401 states and 7427 transitions. [2020-10-13 08:56:13,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:56:13,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1091 [2020-10-13 08:56:13,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:13,391 INFO L225 Difference]: With dead ends: 6401 [2020-10-13 08:56:13,391 INFO L226 Difference]: Without dead ends: 3548 [2020-10-13 08:56:13,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:56:13,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2020-10-13 08:56:13,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3174. [2020-10-13 08:56:13,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3174 states. [2020-10-13 08:56:13,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 3593 transitions. [2020-10-13 08:56:13,465 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 3593 transitions. Word has length 1091 [2020-10-13 08:56:13,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:13,466 INFO L479 AbstractCegarLoop]: Abstraction has 3174 states and 3593 transitions. [2020-10-13 08:56:13,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:56:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 3593 transitions. [2020-10-13 08:56:13,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2020-10-13 08:56:13,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:13,484 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 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] [2020-10-13 08:56:13,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:56:13,485 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:13,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:13,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1642792123, now seen corresponding path program 1 times [2020-10-13 08:56:13,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:13,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002608546] [2020-10-13 08:56:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:13,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:14,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:16,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:18,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:18,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1135 [2020-10-13 08:56:18,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:18,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-13 08:56:18,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:56:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1003 [2020-10-13 08:56:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-13 08:56:18,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:18,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:18,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:18,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:18,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:18,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:18,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:56:18,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:18,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:18,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:18,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:18,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:18,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:56:18,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:18,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:18,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:18,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:18,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:18,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:18,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:18,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:56:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:18,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:18,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:18,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:56:18,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:18,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:18,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:18,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:18,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:56:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:18,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:18,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:18,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:56:18,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:18,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:56:18,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:18,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:18,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:56:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:18,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:18,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:18,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:56:18,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:56:18,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:18,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:56:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:19,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:19,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:19,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:56:19,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:19,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:56:19,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:19,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:19,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:56:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:19,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:19,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:19,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:56:19,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:19,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:56:19,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:19,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:19,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:19,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:19,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:19,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:56:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:19,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:19,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:19,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:19,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:19,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:56:19,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:19,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:19,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:19,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:19,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:19,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:56:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:19,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:19,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:19,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 08:56:19,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:19,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 08:56:19,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 08:56:19,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:19,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2020-10-13 08:56:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:19,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:19,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:19,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:56:19,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 08:56:19,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:56:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:56:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:19,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 975 proven. 44 refuted. 0 times theorem prover too weak. 2778 trivial. 0 not checked. [2020-10-13 08:56:19,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002608546] [2020-10-13 08:56:19,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:19,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:56:19,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848426037] [2020-10-13 08:56:19,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:56:19,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:19,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:56:19,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:56:19,931 INFO L87 Difference]: Start difference. First operand 3174 states and 3593 transitions. Second operand 8 states. [2020-10-13 08:56:21,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:21,743 INFO L93 Difference]: Finished difference Result 6904 states and 7984 transitions. [2020-10-13 08:56:21,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:56:21,743 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1109 [2020-10-13 08:56:21,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:21,758 INFO L225 Difference]: With dead ends: 6904 [2020-10-13 08:56:21,758 INFO L226 Difference]: Without dead ends: 3843 [2020-10-13 08:56:21,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:56:21,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2020-10-13 08:56:21,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 3178. [2020-10-13 08:56:21,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2020-10-13 08:56:21,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 3599 transitions. [2020-10-13 08:56:21,831 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 3599 transitions. Word has length 1109 [2020-10-13 08:56:21,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:21,832 INFO L479 AbstractCegarLoop]: Abstraction has 3178 states and 3599 transitions. [2020-10-13 08:56:21,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:56:21,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 3599 transitions. [2020-10-13 08:56:21,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1111 [2020-10-13 08:56:21,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:21,850 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 5, 4, 4, 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, 1] [2020-10-13 08:56:21,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:56:21,850 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:21,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:21,851 INFO L82 PathProgramCache]: Analyzing trace with hash -71411614, now seen corresponding path program 1 times [2020-10-13 08:56:21,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:21,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338134484] [2020-10-13 08:56:21,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:22,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:22,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:25,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:27,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:27,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1136 [2020-10-13 08:56:27,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:27,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 08:56:27,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:27,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:27,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1092 [2020-10-13 08:56:27,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 08:56:27,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:27,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:27,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:27,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:27,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:27,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:27,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:27,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:27,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:27,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:27,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:27,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:27,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:27,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:56:27,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:27,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:56:27,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:27,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:27,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:27,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:27,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:27,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:56:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:27,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:27,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:27,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:56:27,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:27,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:27,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:27,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:27,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:56:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:27,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:27,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:27,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:56:27,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:27,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:56:27,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:27,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:56:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:27,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:27,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:27,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:56:27,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:27,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:56:27,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:27,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:27,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:27,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:27,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:27,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:56:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:27,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:27,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:27,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:56:27,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:27,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:56:27,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:27,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:27,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:27,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:27,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:27,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:56:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:27,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:27,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:27,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:56:27,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:27,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:56:27,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:27,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:27,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:27,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:27,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:27,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:56:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:27,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:27,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:27,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:27,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:56:27,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:27,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:56:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:27,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:27,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:27,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:56:27,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:27,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:56:27,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:27,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:27,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-13 08:56:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:27,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:27,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:27,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:56:27,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:27,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:56:27,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:27,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:27,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:27,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:56:27,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 3870 backedges. 348 proven. 9 refuted. 0 times theorem prover too weak. 3513 trivial. 0 not checked. [2020-10-13 08:56:28,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338134484] [2020-10-13 08:56:28,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:28,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:28,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827404656] [2020-10-13 08:56:28,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:28,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:28,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:28,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:28,249 INFO L87 Difference]: Start difference. First operand 3178 states and 3599 transitions. Second operand 5 states. [2020-10-13 08:56:29,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:29,480 INFO L93 Difference]: Finished difference Result 7347 states and 8551 transitions. [2020-10-13 08:56:29,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:29,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1110 [2020-10-13 08:56:29,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:29,494 INFO L225 Difference]: With dead ends: 7347 [2020-10-13 08:56:29,494 INFO L226 Difference]: Without dead ends: 4098 [2020-10-13 08:56:29,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:56:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-10-13 08:56:29,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3730. [2020-10-13 08:56:29,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3730 states. [2020-10-13 08:56:29,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 4209 transitions. [2020-10-13 08:56:29,574 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 4209 transitions. Word has length 1110 [2020-10-13 08:56:29,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:29,575 INFO L479 AbstractCegarLoop]: Abstraction has 3730 states and 4209 transitions. [2020-10-13 08:56:29,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:29,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 4209 transitions. [2020-10-13 08:56:29,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1145 [2020-10-13 08:56:29,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:29,597 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:29,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:56:29,598 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:29,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:29,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1142756069, now seen corresponding path program 1 times [2020-10-13 08:56:29,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:29,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391005385] [2020-10-13 08:56:29,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:29,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:30,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:31,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:34,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:34,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1168 [2020-10-13 08:56:34,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:34,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-13 08:56:34,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:34,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:34,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1124 [2020-10-13 08:56:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 08:56:34,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:35,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:35,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:35,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:35,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:35,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:35,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:35,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:35,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:35,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:35,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:35,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:35,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:35,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:35,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:35,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:56:35,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:35,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:56:35,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:35,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:56:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:35,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:35,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:35,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:56:35,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:56:35,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:35,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:35,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:56:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:35,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:35,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:35,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:56:35,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:35,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:56:35,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:35,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:56:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:35,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:35,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:35,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:56:35,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:35,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:56:35,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:35,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:35,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:56:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:35,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:35,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:35,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 08:56:35,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:35,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:56:35,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:35,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:35,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:35,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:35,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:35,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-13 08:56:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:35,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:35,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:35,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 08:56:35,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:35,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:56:35,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:35,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:35,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-13 08:56:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:35,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:35,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:35,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:35,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:35,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 08:56:35,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:35,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:35,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:35,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:35,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:35,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2020-10-13 08:56:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:35,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:35,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:35,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 08:56:35,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:35,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:56:35,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:35,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:35,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:35,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 08:56:35,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:36,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3579 backedges. 309 proven. 8 refuted. 0 times theorem prover too weak. 3262 trivial. 0 not checked. [2020-10-13 08:56:36,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391005385] [2020-10-13 08:56:36,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:36,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:36,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772775962] [2020-10-13 08:56:36,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:36,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:36,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:36,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:36,178 INFO L87 Difference]: Start difference. First operand 3730 states and 4209 transitions. Second operand 5 states. [2020-10-13 08:56:37,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:37,436 INFO L93 Difference]: Finished difference Result 8633 states and 9988 transitions. [2020-10-13 08:56:37,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:37,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1144 [2020-10-13 08:56:37,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:37,456 INFO L225 Difference]: With dead ends: 8633 [2020-10-13 08:56:37,456 INFO L226 Difference]: Without dead ends: 5016 [2020-10-13 08:56:37,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:56:37,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5016 states. [2020-10-13 08:56:37,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5016 to 4466. [2020-10-13 08:56:37,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4466 states. [2020-10-13 08:56:37,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 4974 transitions. [2020-10-13 08:56:37,544 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 4974 transitions. Word has length 1144 [2020-10-13 08:56:37,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:37,545 INFO L479 AbstractCegarLoop]: Abstraction has 4466 states and 4974 transitions. [2020-10-13 08:56:37,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:37,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 4974 transitions. [2020-10-13 08:56:37,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1155 [2020-10-13 08:56:37,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:37,565 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, 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, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:37,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:56:37,565 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:37,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:37,566 INFO L82 PathProgramCache]: Analyzing trace with hash -484340751, now seen corresponding path program 1 times [2020-10-13 08:56:37,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:37,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470179162] [2020-10-13 08:56:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:38,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:38,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:40,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:42,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:42,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1178 [2020-10-13 08:56:42,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:42,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5146 [2020-10-13 08:56:42,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:42,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:42,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1134 [2020-10-13 08:56:42,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 08:56:42,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:43,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:43,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:56:43,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:56:43,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:56:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:56:43,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:43,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:56:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:56:43,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:56:43,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:56:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:56:43,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:56:43,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:56:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 08:56:43,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:56:43,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-13 08:56:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 08:56:43,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:56:43,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-13 08:56:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:43,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:56:43,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2020-10-13 08:56:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 08:56:43,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 08:56:43,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:43,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 08:56:43,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:44,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 309 proven. 8 refuted. 0 times theorem prover too weak. 3332 trivial. 0 not checked. [2020-10-13 08:56:44,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470179162] [2020-10-13 08:56:44,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:44,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:44,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465102644] [2020-10-13 08:56:44,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:44,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:44,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:44,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:44,140 INFO L87 Difference]: Start difference. First operand 4466 states and 4974 transitions. Second operand 5 states. [2020-10-13 08:56:45,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:45,624 INFO L93 Difference]: Finished difference Result 9476 states and 10663 transitions. [2020-10-13 08:56:45,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:45,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1154 [2020-10-13 08:56:45,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:45,639 INFO L225 Difference]: With dead ends: 9476 [2020-10-13 08:56:45,639 INFO L226 Difference]: Without dead ends: 5123 [2020-10-13 08:56:45,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:56:45,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2020-10-13 08:56:45,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 4650. [2020-10-13 08:56:45,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4650 states. [2020-10-13 08:56:45,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4650 states to 4650 states and 5172 transitions. [2020-10-13 08:56:45,734 INFO L78 Accepts]: Start accepts. Automaton has 4650 states and 5172 transitions. Word has length 1154 [2020-10-13 08:56:45,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:45,735 INFO L479 AbstractCegarLoop]: Abstraction has 4650 states and 5172 transitions. [2020-10-13 08:56:45,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:45,735 INFO L276 IsEmpty]: Start isEmpty. Operand 4650 states and 5172 transitions. [2020-10-13 08:56:45,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1243 [2020-10-13 08:56:45,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:45,764 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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:45,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:56:45,765 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:45,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:45,766 INFO L82 PathProgramCache]: Analyzing trace with hash 339238339, now seen corresponding path program 1 times [2020-10-13 08:56:45,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:45,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433437968] [2020-10-13 08:56:45,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:46,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:46,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:46,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:48,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1270 [2020-10-13 08:56:51,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:51,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 08:56:51,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:51,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1226 [2020-10-13 08:56:51,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 08:56:51,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:51,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:56:51,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:51,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:56:51,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:56:51,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:51,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:56:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:56:51,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:51,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:56:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:56:51,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:56:51,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:51,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:51,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:56:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:56:51,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:56:51,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:51,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:51,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:56:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:56:51,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:56:51,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:51,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:56:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:56:51,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:51,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:51,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:51,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:56:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:51,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 08:56:51,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:51,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:56:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:56:51,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:56:51,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:51,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:56:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:56:51,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:56:51,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:51,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:51,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:51,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-13 08:56:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:51,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:51,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:51,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:51,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:51,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 08:56:51,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:51,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:51,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:51,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 08:56:51,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4922 backedges. 387 proven. 10 refuted. 0 times theorem prover too weak. 4525 trivial. 0 not checked. [2020-10-13 08:56:52,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433437968] [2020-10-13 08:56:52,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:52,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:52,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34372631] [2020-10-13 08:56:52,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:52,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:52,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:52,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:52,425 INFO L87 Difference]: Start difference. First operand 4650 states and 5172 transitions. Second operand 5 states. [2020-10-13 08:56:53,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:53,635 INFO L93 Difference]: Finished difference Result 9551 states and 10647 transitions. [2020-10-13 08:56:53,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:53,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1242 [2020-10-13 08:56:53,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:53,638 INFO L225 Difference]: With dead ends: 9551 [2020-10-13 08:56:53,638 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 08:56:53,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:56:53,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 08:56:53,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 08:56:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 08:56:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 08:56:53,652 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1242 [2020-10-13 08:56:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:53,653 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 08:56:53,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:53,653 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 08:56:53,653 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 08:56:53,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:56:53,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 08:56:54,348 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 131 [2020-10-13 08:56:54,616 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 155 [2020-10-13 08:56:56,085 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 318 DAG size of output: 86 [2020-10-13 08:56:56,485 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 59 [2020-10-13 08:56:56,944 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 59 [2020-10-13 08:56:56,948 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:56:56,949 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-10-13 08:56:56,949 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:56:56,949 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-10-13 08:56:56,949 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-10-13 08:56:56,949 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,949 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,949 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,949 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-10-13 08:56:56,950 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-13 08:56:56,950 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-13 08:56:56,950 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-13 08:56:56,950 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-10-13 08:56:56,950 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-10-13 08:56:56,950 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-10-13 08:56:56,950 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-10-13 08:56:56,950 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,951 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,951 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,951 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-10-13 08:56:56,951 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-10-13 08:56:56,951 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-13 08:56:56,951 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-13 08:56:56,951 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-13 08:56:56,951 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-10-13 08:56:56,952 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-10-13 08:56:56,953 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-10-13 08:56:56,953 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,953 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,953 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,953 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-10-13 08:56:56,953 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-13 08:56:56,953 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-13 08:56:56,953 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-13 08:56:56,953 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-10-13 08:56:56,954 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-10-13 08:56:56,954 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-10-13 08:56:56,954 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,954 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,954 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,954 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-10-13 08:56:56,954 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-13 08:56:56,954 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-13 08:56:56,954 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-13 08:56:56,955 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-10-13 08:56:56,955 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-10-13 08:56:56,955 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-10-13 08:56:56,955 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-10-13 08:56:56,955 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-10-13 08:56:56,955 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,955 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,955 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,955 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,955 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-10-13 08:56:56,955 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-10-13 08:56:56,956 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-10-13 08:56:56,957 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-10-13 08:56:56,957 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-10-13 08:56:56,957 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,957 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,957 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,957 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-10-13 08:56:56,957 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-10-13 08:56:56,957 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-13 08:56:56,957 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-13 08:56:56,957 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-13 08:56:56,957 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-10-13 08:56:56,958 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse0 (= ~a24~0 |old(~a24~0)|)) (.cse2 (= ~a12~0 |old(~a12~0)|)) (.cse11 (= ~a15~0 |old(~a15~0)|))) (let ((.cse10 (not (<= |old(~a12~0)| 599999))) (.cse8 (not (<= |old(~a15~0)| 5))) (.cse13 (not (= 9 |old(~a21~0)|))) (.cse14 (and .cse0 (= ~a21~0 9) .cse2 .cse11)) (.cse12 (not (<= |old(~a12~0)| 73282))) (.cse9 (and .cse0 (= ~a21~0 |old(~a21~0)|) .cse2 .cse11)) (.cse4 (not (<= 1 |old(~a24~0)|))) (.cse5 (not (<= |old(~a24~0)| 1))) (.cse6 (not (<= 6 |old(~a21~0)|))) (.cse7 (not (<= |old(~a21~0)| 6))) (.cse1 (<= 6 ~a21~0)) (.cse3 (<= ~a21~0 6))) (and (or (and (<= ~a15~0 5) .cse0 .cse1 .cse2 .cse3 (<= 5 ~a15~0)) .cse4 .cse5 .cse6 .cse7 (not (<= 5 |old(~a15~0)|)) .cse8) (or (not (<= 81 |old(~a12~0)|)) .cse9 .cse10) (or (not (= 7 |old(~a21~0)|)) (and .cse0 .cse2 (= 7 ~a21~0) .cse11) .cse12) (or (and .cse0 (= ~a21~0 8) .cse2 .cse11) (not (= 8 |old(~a21~0)|)) .cse10) (or .cse13 .cse14 .cse8) (or .cse12 .cse13 .cse14) (or .cse9 .cse12 (= 7 |old(~a15~0)|)) (or .cse9 (not (<= (+ |old(~a12~0)| 2797) 0))) (or .cse4 .cse5 (not (<= |old(~a12~0)| 10)) (not (<= 0 (+ |old(~a12~0)| 41))) .cse6 .cse7 (and .cse0 .cse1 .cse2 .cse3 .cse11))))) [2020-10-13 08:56:56,958 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-10-13 08:56:56,958 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-10-13 08:56:56,958 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,958 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,958 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,958 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-13 08:56:56,958 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-10-13 08:56:56,959 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-13 08:56:56,960 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-13 08:56:56,961 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-10-13 08:56:56,961 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-10-13 08:56:56,961 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-10-13 08:56:56,961 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-10-13 08:56:56,961 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,961 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,961 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,961 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-10-13 08:56:56,961 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-13 08:56:56,961 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-13 08:56:56,962 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-13 08:56:56,962 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-10-13 08:56:56,962 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-10-13 08:56:56,962 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-10-13 08:56:56,962 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-10-13 08:56:56,962 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,962 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,962 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-10-13 08:56:56,962 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-13 08:56:56,962 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-13 08:56:56,963 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-10-13 08:56:56,963 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-10-13 08:56:56,963 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-10-13 08:56:56,963 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-10-13 08:56:56,963 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-10-13 08:56:56,963 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 118) no Hoare annotation was computed. [2020-10-13 08:56:56,963 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,963 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,963 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-10-13 08:56:56,964 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-13 08:56:56,964 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-13 08:56:56,964 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-10-13 08:56:56,964 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-10-13 08:56:56,964 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-10-13 08:56:56,964 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,964 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,964 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-10-13 08:56:56,964 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-10-13 08:56:56,964 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-10-13 08:56:56,965 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,966 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,967 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-13 08:56:56,968 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-10-13 08:56:56,969 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-10-13 08:56:56,970 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,970 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,970 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:56:56,970 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-10-13 08:56:56,970 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-13 08:56:56,970 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-13 08:56:56,970 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-13 08:56:56,970 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-10-13 08:56:56,970 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:56:56,971 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0) (= (+ ~a12~0 49) 0)) [2020-10-13 08:56:56,971 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 08:56:56,971 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:56:56,971 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= (+ |old(~a12~0)| 49) 0)) (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|))) [2020-10-13 08:56:56,971 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:56:56,971 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 5)) (.cse6 (= ~a21~0 9)) (.cse5 (<= ~a12~0 599999)) (.cse1 (<= ~a24~0 1)) (.cse2 (<= 1 ~a24~0)) (.cse3 (<= 6 ~a21~0)) (.cse4 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 5 ~a15~0)) (not (= |old(~a24~0)| 1)) (not (= 8 |old(~a15~0)|)) (and (= ~a21~0 8) .cse5) (and (<= ~a12~0 73282) (not (= 7 ~a15~0))) (and .cse6 .cse5) (not (= 7 |old(~a21~0)|)) (not (= (+ |old(~a12~0)| 49) 0)) (and .cse0 .cse6) (and (<= 81 ~a12~0) .cse5) (and .cse5 (= 7 ~a21~0)) (and (<= 0 (+ ~a12~0 41)) (<= ~a12~0 10) .cse1 .cse2 .cse3 .cse4) (<= (+ ~a12~0 2797) 0))) [2020-10-13 08:56:56,971 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-10-13 08:56:56,972 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-10-13 08:56:56,972 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 5)) (.cse6 (= ~a21~0 9)) (.cse5 (<= ~a12~0 599999)) (.cse1 (<= ~a24~0 1)) (.cse2 (<= 1 ~a24~0)) (.cse3 (<= 6 ~a21~0)) (.cse4 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 5 ~a15~0)) (not (= |old(~a24~0)| 1)) (not (= 8 |old(~a15~0)|)) (and (= ~a21~0 8) .cse5) (and (<= ~a12~0 73282) (not (= 7 ~a15~0))) (and .cse6 .cse5) (not (= 7 |old(~a21~0)|)) (not (= (+ |old(~a12~0)| 49) 0)) (and .cse0 .cse6) (and (<= 81 ~a12~0) .cse5) (and .cse5 (= 7 ~a21~0)) (and (<= 0 (+ ~a12~0 41)) (<= ~a12~0 10) .cse1 .cse2 .cse3 .cse4) (<= (+ ~a12~0 2797) 0))) [2020-10-13 08:56:56,972 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:56:56,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:56:56 BoogieIcfgContainer [2020-10-13 08:56:56,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 08:56:56,995 INFO L168 Benchmark]: Toolchain (without parser) took 186609.07 ms. Allocated memory was 141.6 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 102.5 MB in the beginning and 1.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 858.8 MB. Max. memory is 7.1 GB. [2020-10-13 08:56:56,996 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 08:56:56,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 847.24 ms. Allocated memory was 141.6 MB in the beginning and 207.1 MB in the end (delta: 65.5 MB). Free memory was 102.3 MB in the beginning and 169.4 MB in the end (delta: -67.1 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. [2020-10-13 08:56:56,997 INFO L168 Benchmark]: Boogie Preprocessor took 155.44 ms. Allocated memory is still 207.1 MB. Free memory was 169.4 MB in the beginning and 164.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-10-13 08:56:56,997 INFO L168 Benchmark]: RCFGBuilder took 1885.72 ms. Allocated memory was 207.1 MB in the beginning and 237.5 MB in the end (delta: 30.4 MB). Free memory was 164.0 MB in the beginning and 152.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 76.1 MB. Max. memory is 7.1 GB. [2020-10-13 08:56:56,998 INFO L168 Benchmark]: TraceAbstraction took 183715.88 ms. Allocated memory was 237.5 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 152.0 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 812.3 MB. Max. memory is 7.1 GB. [2020-10-13 08:56:56,999 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 847.24 ms. Allocated memory was 141.6 MB in the beginning and 207.1 MB in the end (delta: 65.5 MB). Free memory was 102.3 MB in the beginning and 169.4 MB in the end (delta: -67.1 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 155.44 ms. Allocated memory is still 207.1 MB. Free memory was 169.4 MB in the beginning and 164.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1885.72 ms. Allocated memory was 207.1 MB in the beginning and 237.5 MB in the end (delta: 30.4 MB). Free memory was 164.0 MB in the beginning and 152.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 76.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 183715.88 ms. Allocated memory was 237.5 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 152.0 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 812.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 118]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((((((((((a15 <= 5 && a24 <= 1) && 1 <= a24) && 6 <= a21) && a21 <= 6) && 5 <= a15) || !(\old(a24) == 1)) || !(8 == \old(a15))) || (a21 == 8 && a12 <= 599999)) || (a12 <= 73282 && !(7 == a15))) || (a21 == 9 && a12 <= 599999)) || !(7 == \old(a21))) || !(\old(a12) + 49 == 0)) || (a15 <= 5 && a21 == 9)) || (81 <= a12 && a12 <= 599999)) || (a12 <= 599999 && 7 == a21)) || (((((0 <= a12 + 41 && a12 <= 10) && a24 <= 1) && 1 <= a24) && 6 <= a21) && a21 <= 6)) || a12 + 2797 <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 180.3s, OverallIterations: 22, TraceHistogramMax: 11, AutomataDifference: 56.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 573 SDtfs, 12420 SDslu, 815 SDs, 0 SdLazy, 26036 SolverSat, 2209 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 651 GetRequests, 370 SyntacticMatches, 10 SemanticMatches, 271 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 26.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4650occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 22 MinimizatonAttempts, 3147 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 255 PreInvPairs, 325 NumberOfFragments, 532 HoareAnnotationTreeSize, 255 FomulaSimplifications, 1039583 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 21653 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 104.3s InterpolantComputationTime, 15223 NumberOfCodeBlocks, 15223 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 15201 ConstructedInterpolants, 0 QuantifiedInterpolants, 64362359 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 1 PerfectInterpolantSequences, 40754/41772 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...