/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=BIGGEST --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/Problem11_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:12:21,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:12:21,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:12:21,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:12:21,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:12:21,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:12:21,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:12:21,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:12:21,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:12:21,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:12:21,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:12:21,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:12:21,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:12:21,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:12:21,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:12:21,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:12:21,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:12:21,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:12:21,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:12:21,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:12:21,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:12:21,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:12:21,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:12:21,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:12:21,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:12:21,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:12:21,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:12:21,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:12:21,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:12:21,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:12:21,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:12:21,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:12:21,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:12:21,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:12:21,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:12:21,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:12:21,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:12:21,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:12:21,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:12:21,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:12:21,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:12:21,068 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 [2020-10-12 13:12:21,091 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:12:21,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:12:21,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:12:21,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:12:21,093 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:12:21,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:12:21,094 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:12:21,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:12:21,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:12:21,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:12:21,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:12:21,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:12:21,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:12:21,095 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:12:21,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:12:21,095 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:12:21,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:12:21,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:12:21,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:12:21,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:12:21,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:12:21,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:12:21,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:12:21,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:12:21,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:12:21,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:12:21,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:12:21,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:12:21,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:12:21,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 13:12:21,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:12:21,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:12:21,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:12:21,443 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:12:21,443 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:12:21,444 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label35.c [2020-10-12 13:12:21,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0085ad36e/b7be4047fbd049528ab8937181266328/FLAG5e2beac49 [2020-10-12 13:12:22,092 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:12:22,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label35.c [2020-10-12 13:12:22,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0085ad36e/b7be4047fbd049528ab8937181266328/FLAG5e2beac49 [2020-10-12 13:12:22,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0085ad36e/b7be4047fbd049528ab8937181266328 [2020-10-12 13:12:22,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:12:22,397 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:12:22,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:12:22,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:12:22,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:12:22,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:12:22" (1/1) ... [2020-10-12 13:12:22,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@743cee4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:12:22, skipping insertion in model container [2020-10-12 13:12:22,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:12:22" (1/1) ... [2020-10-12 13:12:22,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:12:22,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:12:23,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:12:23,194 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:12:23,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:12:23,435 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:12:23,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:12:23 WrapperNode [2020-10-12 13:12:23,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:12:23,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:12:23,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:12:23,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:12:23,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:12:23" (1/1) ... [2020-10-12 13:12:23,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:12:23" (1/1) ... [2020-10-12 13:12:23,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:12:23" (1/1) ... [2020-10-12 13:12:23,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:12:23" (1/1) ... [2020-10-12 13:12:23,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:12:23" (1/1) ... [2020-10-12 13:12:23,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:12:23" (1/1) ... [2020-10-12 13:12:23,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:12:23" (1/1) ... [2020-10-12 13:12:23,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:12:23,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:12:23,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:12:23,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:12:23,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:12:23" (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 [2020-10-12 13:12:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:12:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:12:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:12:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:12:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:12:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:12:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:12:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:12:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:12:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:12:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 13:12:25,387 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 13:12:25,387 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 13:12:25,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:12:25 BoogieIcfgContainer [2020-10-12 13:12:25,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 13:12:25,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 13:12:25,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 13:12:25,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 13:12:25,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:12:22" (1/3) ... [2020-10-12 13:12:25,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f66106a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:12:25, skipping insertion in model container [2020-10-12 13:12:25,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:12:23" (2/3) ... [2020-10-12 13:12:25,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f66106a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:12:25, skipping insertion in model container [2020-10-12 13:12:25,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:12:25" (3/3) ... [2020-10-12 13:12:25,404 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label35.c [2020-10-12 13:12:25,417 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 13:12:25,426 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 13:12:25,443 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 13:12:25,471 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 13:12:25,472 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 13:12:25,472 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 13:12:25,472 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 13:12:25,472 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 13:12:25,472 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 13:12:25,473 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 13:12:25,473 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 13:12:25,497 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-10-12 13:12:25,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 13:12:25,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:12:25,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:12:25,509 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:12:25,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:12:25,516 INFO L82 PathProgramCache]: Analyzing trace with hash 524759243, now seen corresponding path program 1 times [2020-10-12 13:12:25,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:12:25,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50685955] [2020-10-12 13:12:25,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:12:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:25,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:26,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:26,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 13:12:26,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:26,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-12 13:12:26,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:12:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:12:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 13:12:26,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 13:12:26,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:12:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:26,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:26,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:26,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:12:26,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:26,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 13:12:26,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:12:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:12:26,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:12:26,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:26,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:12:26,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50685955] [2020-10-12 13:12:26,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:12:26,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 13:12:26,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267143391] [2020-10-12 13:12:26,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:12:26,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:12:26,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:12:26,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:12:26,469 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 5 states. [2020-10-12 13:12:30,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:12:30,167 INFO L93 Difference]: Finished difference Result 992 states and 1777 transitions. [2020-10-12 13:12:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:12:30,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-10-12 13:12:30,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:12:30,192 INFO L225 Difference]: With dead ends: 992 [2020-10-12 13:12:30,192 INFO L226 Difference]: Without dead ends: 630 [2020-10-12 13:12:30,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:12:30,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-10-12 13:12:30,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 624. [2020-10-12 13:12:30,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-10-12 13:12:30,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 864 transitions. [2020-10-12 13:12:30,324 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 864 transitions. Word has length 64 [2020-10-12 13:12:30,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:12:30,325 INFO L479 AbstractCegarLoop]: Abstraction has 624 states and 864 transitions. [2020-10-12 13:12:30,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:12:30,326 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 864 transitions. [2020-10-12 13:12:30,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-12 13:12:30,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:12:30,342 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:12:30,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 13:12:30,342 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:12:30,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:12:30,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1615937014, now seen corresponding path program 1 times [2020-10-12 13:12:30,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:12:30,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937822797] [2020-10-12 13:12:30,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:12:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:30,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:30,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:31,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:32,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:32,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-12 13:12:32,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:12:32,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2139 [2020-10-12 13:12:32,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:32,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:12:32,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:12:32,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 13:12:32,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:12:32,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:12:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:32,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:32,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:32,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:12:32,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:32,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:12:32,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:32,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:12:32,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:12:32,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:12:32,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 13:12:32,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:12:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:32,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:32,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:32,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:12:32,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:32,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-12 13:12:32,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:12:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:12:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 13:12:32,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:33,019 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:12:33,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937822797] [2020-10-12 13:12:33,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:12:33,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:12:33,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574823376] [2020-10-12 13:12:33,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:12:33,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:12:33,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:12:33,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:12:33,024 INFO L87 Difference]: Start difference. First operand 624 states and 864 transitions. Second operand 7 states. [2020-10-12 13:12:35,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:12:35,761 INFO L93 Difference]: Finished difference Result 1881 states and 2647 transitions. [2020-10-12 13:12:35,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:12:35,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2020-10-12 13:12:35,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:12:35,780 INFO L225 Difference]: With dead ends: 1881 [2020-10-12 13:12:35,780 INFO L226 Difference]: Without dead ends: 1263 [2020-10-12 13:12:35,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:12:35,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2020-10-12 13:12:35,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1215. [2020-10-12 13:12:35,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1215 states. [2020-10-12 13:12:35,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1578 transitions. [2020-10-12 13:12:35,873 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1578 transitions. Word has length 136 [2020-10-12 13:12:35,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:12:35,876 INFO L479 AbstractCegarLoop]: Abstraction has 1215 states and 1578 transitions. [2020-10-12 13:12:35,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:12:35,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1578 transitions. [2020-10-12 13:12:35,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-12 13:12:35,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:12:35,886 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:12:35,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 13:12:35,887 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:12:35,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:12:35,888 INFO L82 PathProgramCache]: Analyzing trace with hash 354850170, now seen corresponding path program 1 times [2020-10-12 13:12:35,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:12:35,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980638897] [2020-10-12 13:12:35,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:12:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:36,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:36,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:36,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:37,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:37,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:37,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-12 13:12:37,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:12:37,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1809 [2020-10-12 13:12:37,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:37,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:12:37,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:12:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-12 13:12:37,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:37,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:12:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:37,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:37,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:37,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:12:37,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:37,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 13:12:37,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:37,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:12:37,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:12:37,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:12:37,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:12:37,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:12:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:37,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:38,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:38,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:38,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 13:12:38,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:12:38,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-12 13:12:38,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:38,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:12:38,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:12:38,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:12:38,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 13:12:38,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980638897] [2020-10-12 13:12:38,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:12:38,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:12:38,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979059720] [2020-10-12 13:12:38,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:12:38,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:12:38,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:12:38,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:12:38,295 INFO L87 Difference]: Start difference. First operand 1215 states and 1578 transitions. Second operand 7 states. [2020-10-12 13:12:41,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:12:41,008 INFO L93 Difference]: Finished difference Result 2908 states and 3920 transitions. [2020-10-12 13:12:41,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:12:41,010 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-10-12 13:12:41,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:12:41,028 INFO L225 Difference]: With dead ends: 2908 [2020-10-12 13:12:41,028 INFO L226 Difference]: Without dead ends: 1699 [2020-10-12 13:12:41,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:12:41,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2020-10-12 13:12:41,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1612. [2020-10-12 13:12:41,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1612 states. [2020-10-12 13:12:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2020 transitions. [2020-10-12 13:12:41,134 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2020 transitions. Word has length 144 [2020-10-12 13:12:41,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:12:41,136 INFO L479 AbstractCegarLoop]: Abstraction has 1612 states and 2020 transitions. [2020-10-12 13:12:41,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:12:41,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2020 transitions. [2020-10-12 13:12:41,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-12 13:12:41,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:12:41,140 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:12:41,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 13:12:41,140 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:12:41,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:12:41,140 INFO L82 PathProgramCache]: Analyzing trace with hash -175516396, now seen corresponding path program 1 times [2020-10-12 13:12:41,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:12:41,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908250237] [2020-10-12 13:12:41,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:12:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:41,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:41,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:41,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-12 13:12:41,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:41,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-12 13:12:41,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:12:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 13:12:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 13:12:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:41,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:12:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:41,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:41,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:41,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:12:41,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:41,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:12:41,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:41,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:12:41,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:12:41,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:12:41,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:41,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:12:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:41,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:41,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:41,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-12 13:12:41,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:41,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-12 13:12:41,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:41,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:12:41,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:12:41,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-12 13:12:41,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:42,074 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:12:42,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908250237] [2020-10-12 13:12:42,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:12:42,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:12:42,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165974010] [2020-10-12 13:12:42,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:12:42,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:12:42,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:12:42,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:12:42,079 INFO L87 Difference]: Start difference. First operand 1612 states and 2020 transitions. Second operand 6 states. [2020-10-12 13:12:44,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:12:44,951 INFO L93 Difference]: Finished difference Result 3464 states and 4577 transitions. [2020-10-12 13:12:44,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:12:44,952 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-10-12 13:12:44,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:12:44,963 INFO L225 Difference]: With dead ends: 3464 [2020-10-12 13:12:44,963 INFO L226 Difference]: Without dead ends: 2236 [2020-10-12 13:12:44,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:12:44,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2020-10-12 13:12:45,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2203. [2020-10-12 13:12:45,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2203 states. [2020-10-12 13:12:45,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 2842 transitions. [2020-10-12 13:12:45,049 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 2842 transitions. Word has length 195 [2020-10-12 13:12:45,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:12:45,052 INFO L479 AbstractCegarLoop]: Abstraction has 2203 states and 2842 transitions. [2020-10-12 13:12:45,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:12:45,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 2842 transitions. [2020-10-12 13:12:45,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-12 13:12:45,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:12:45,060 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:12:45,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 13:12:45,061 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:12:45,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:12:45,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1274480087, now seen corresponding path program 1 times [2020-10-12 13:12:45,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:12:45,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076424758] [2020-10-12 13:12:45,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:12:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:45,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:45,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:46,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:46,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-12 13:12:46,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:12:46,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1757 [2020-10-12 13:12:46,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:12:46,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:12:46,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 280 [2020-10-12 13:12:46,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:47,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:12:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:47,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:47,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:47,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:12:47,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:47,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 13:12:47,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:47,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:12:47,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:12:47,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:12:47,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:47,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:12:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:47,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:47,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:47,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 13:12:47,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:47,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-12 13:12:47,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:47,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:12:47,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:12:47,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 13:12:47,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:47,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 13:12:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:47,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:47,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:47,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:12:47,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:47,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-12 13:12:47,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:12:47,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:12:47,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:12:47,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:47,816 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-12 13:12:47,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076424758] [2020-10-12 13:12:47,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:12:47,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:12:47,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72865454] [2020-10-12 13:12:47,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:12:47,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:12:47,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:12:47,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:12:47,819 INFO L87 Difference]: Start difference. First operand 2203 states and 2842 transitions. Second operand 8 states. [2020-10-12 13:12:51,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:12:51,282 INFO L93 Difference]: Finished difference Result 4137 states and 5712 transitions. [2020-10-12 13:12:51,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 13:12:51,283 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 274 [2020-10-12 13:12:51,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:12:51,299 INFO L225 Difference]: With dead ends: 4137 [2020-10-12 13:12:51,300 INFO L226 Difference]: Without dead ends: 2908 [2020-10-12 13:12:51,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-12 13:12:51,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2020-10-12 13:12:51,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2836. [2020-10-12 13:12:51,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2836 states. [2020-10-12 13:12:51,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 3642 transitions. [2020-10-12 13:12:51,387 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 3642 transitions. Word has length 274 [2020-10-12 13:12:51,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:12:51,387 INFO L479 AbstractCegarLoop]: Abstraction has 2836 states and 3642 transitions. [2020-10-12 13:12:51,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:12:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 3642 transitions. [2020-10-12 13:12:51,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-10-12 13:12:51,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:12:51,398 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-12 13:12:51,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 13:12:51,398 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:12:51,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:12:51,399 INFO L82 PathProgramCache]: Analyzing trace with hash 563090089, now seen corresponding path program 1 times [2020-10-12 13:12:51,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:12:51,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41199039] [2020-10-12 13:12:51,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:12:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:51,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:51,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:51,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:52,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:54,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:54,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:56,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:56,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-12 13:12:56,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 13:12:56,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-12 13:12:56,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 13:12:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:12:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-12 13:12:56,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:12:56,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:12:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:56,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:56,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:56,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:12:56,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:56,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 13:12:56,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:12:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:12:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:12:56,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:56,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:12:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:56,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:56,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:56,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:56,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 13:12:56,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:12:56,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-12 13:12:56,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:56,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:12:56,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:12:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 13:12:56,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:12:57,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 13:12:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:57,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:57,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:57,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:12:57,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:12:57,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-12 13:12:57,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:12:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:12:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 13:12:57,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:57,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-12 13:12:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:12:57,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:12:57,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:12:57,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 13:12:57,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:12:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 13:12:57,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:12:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:12:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:12:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 13:12:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:12:57,557 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 240 proven. 68 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-12 13:12:57,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41199039] [2020-10-12 13:12:57,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:12:57,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:12:57,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612427500] [2020-10-12 13:12:57,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:12:57,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:12:57,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:12:57,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:12:57,560 INFO L87 Difference]: Start difference. First operand 2836 states and 3642 transitions. Second operand 8 states. [2020-10-12 13:13:00,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:13:00,083 INFO L93 Difference]: Finished difference Result 6514 states and 8823 transitions. [2020-10-12 13:13:00,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:13:00,083 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 323 [2020-10-12 13:13:00,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:13:00,104 INFO L225 Difference]: With dead ends: 6514 [2020-10-12 13:13:00,104 INFO L226 Difference]: Without dead ends: 3864 [2020-10-12 13:13:00,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:13:00,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2020-10-12 13:13:00,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3620. [2020-10-12 13:13:00,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3620 states. [2020-10-12 13:13:00,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 4588 transitions. [2020-10-12 13:13:00,209 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 4588 transitions. Word has length 323 [2020-10-12 13:13:00,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:13:00,209 INFO L479 AbstractCegarLoop]: Abstraction has 3620 states and 4588 transitions. [2020-10-12 13:13:00,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:13:00,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 4588 transitions. [2020-10-12 13:13:00,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-12 13:13:00,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:13:00,221 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:13:00,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 13:13:00,221 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:13:00,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:13:00,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2200869, now seen corresponding path program 1 times [2020-10-12 13:13:00,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:13:00,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533108569] [2020-10-12 13:13:00,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:13:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:00,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:00,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:00,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:01,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:04,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:05,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:05,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 355 [2020-10-12 13:13:05,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:13:05,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-12 13:13:05,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:13:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-10-12 13:13:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 13:13:05,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:05,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:13:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:05,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:05,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:05,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:13:05,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:05,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:13:05,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:05,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:05,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:05,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:13:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:05,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:05,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:05,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 13:13:05,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:05,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 13:13:05,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:05,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:05,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 13:13:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:05,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:05,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:05,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:13:05,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:05,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 13:13:05,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:05,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:13:05,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:05,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 13:13:05,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:13:05,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-12 13:13:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:05,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:05,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:05,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:05,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 13:13:05,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:13:05,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-12 13:13:05,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:05,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:05,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:13:05,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 13:13:06,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 52 [2020-10-12 13:13:06,205 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 271 proven. 58 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-12 13:13:06,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533108569] [2020-10-12 13:13:06,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:13:06,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:13:06,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951117650] [2020-10-12 13:13:06,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:13:06,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:13:06,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:13:06,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:13:06,209 INFO L87 Difference]: Start difference. First operand 3620 states and 4588 transitions. Second operand 6 states. [2020-10-12 13:13:08,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:13:08,484 INFO L93 Difference]: Finished difference Result 4242 states and 5412 transitions. [2020-10-12 13:13:08,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:13:08,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 341 [2020-10-12 13:13:08,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:13:08,504 INFO L225 Difference]: With dead ends: 4242 [2020-10-12 13:13:08,504 INFO L226 Difference]: Without dead ends: 4240 [2020-10-12 13:13:08,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:13:08,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4240 states. [2020-10-12 13:13:08,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4240 to 3820. [2020-10-12 13:13:08,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3820 states. [2020-10-12 13:13:08,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3820 states to 3820 states and 4832 transitions. [2020-10-12 13:13:08,617 INFO L78 Accepts]: Start accepts. Automaton has 3820 states and 4832 transitions. Word has length 341 [2020-10-12 13:13:08,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:13:08,618 INFO L479 AbstractCegarLoop]: Abstraction has 3820 states and 4832 transitions. [2020-10-12 13:13:08,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:13:08,618 INFO L276 IsEmpty]: Start isEmpty. Operand 3820 states and 4832 transitions. [2020-10-12 13:13:08,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-10-12 13:13:08,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:13:08,630 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:13:08,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 13:13:08,631 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:13:08,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:13:08,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1158209601, now seen corresponding path program 1 times [2020-10-12 13:13:08,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:13:08,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179411329] [2020-10-12 13:13:08,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:13:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:08,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:09,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:09,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:10,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:11,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:11,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 354 [2020-10-12 13:13:11,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:13:11,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3114 [2020-10-12 13:13:11,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:11,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:13:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:13:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 326 [2020-10-12 13:13:11,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:12,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:13:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:12,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:12,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:12,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:13:12,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:12,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 13:13:12,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:13:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:13:12,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:12,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:13:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:12,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:12,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:12,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-12 13:13:12,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:12,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-12 13:13:12,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:13:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:13:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 13:13:12,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:13:12,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 13:13:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:12,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:12,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:12,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-12 13:13:12,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:12,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-12 13:13:12,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:12,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:13:12,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:13:12,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-12 13:13:12,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:13,436 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 44 proven. 198 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 13:13:13,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179411329] [2020-10-12 13:13:13,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:13:13,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 13:13:13,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368321805] [2020-10-12 13:13:13,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 13:13:13,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:13:13,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 13:13:13,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:13:13,445 INFO L87 Difference]: Start difference. First operand 3820 states and 4832 transitions. Second operand 11 states. [2020-10-12 13:13:18,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:13:18,346 INFO L93 Difference]: Finished difference Result 7789 states and 10224 transitions. [2020-10-12 13:13:18,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 13:13:18,347 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 342 [2020-10-12 13:13:18,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:13:18,368 INFO L225 Difference]: With dead ends: 7789 [2020-10-12 13:13:18,368 INFO L226 Difference]: Without dead ends: 4313 [2020-10-12 13:13:18,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2020-10-12 13:13:18,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2020-10-12 13:13:18,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4228. [2020-10-12 13:13:18,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4228 states. [2020-10-12 13:13:18,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4228 states to 4228 states and 5338 transitions. [2020-10-12 13:13:18,498 INFO L78 Accepts]: Start accepts. Automaton has 4228 states and 5338 transitions. Word has length 342 [2020-10-12 13:13:18,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:13:18,499 INFO L479 AbstractCegarLoop]: Abstraction has 4228 states and 5338 transitions. [2020-10-12 13:13:18,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 13:13:18,499 INFO L276 IsEmpty]: Start isEmpty. Operand 4228 states and 5338 transitions. [2020-10-12 13:13:18,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-10-12 13:13:18,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:13:18,512 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:13:18,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 13:13:18,512 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:13:18,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:13:18,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1552026154, now seen corresponding path program 1 times [2020-10-12 13:13:18,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:13:18,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392227712] [2020-10-12 13:13:18,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:13:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:18,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:18,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:18,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:21,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:21,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-12 13:13:21,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:13:21,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2520 [2020-10-12 13:13:21,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:21,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:21,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-10-12 13:13:21,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 13:13:21,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:21,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:13:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:21,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:21,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:21,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:13:21,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:21,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:13:21,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:21,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:21,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:21,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:13:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:21,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:21,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:21,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 13:13:21,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:21,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 13:13:21,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:21,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:21,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:21,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:21,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:21,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 13:13:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:21,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:21,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:21,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:13:21,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:21,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 13:13:21,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:21,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:13:21,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:21,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 13:13:21,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:21,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-12 13:13:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:21,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:21,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:21,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:21,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:13:21,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:13:21,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-12 13:13:21,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:13:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:13:21,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-12 13:13:22,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392227712] [2020-10-12 13:13:22,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:13:22,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:13:22,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666370231] [2020-10-12 13:13:22,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:13:22,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:13:22,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:13:22,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:13:22,039 INFO L87 Difference]: Start difference. First operand 4228 states and 5338 transitions. Second operand 6 states. [2020-10-12 13:13:24,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:13:24,245 INFO L93 Difference]: Finished difference Result 7136 states and 9131 transitions. [2020-10-12 13:13:24,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:13:24,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 346 [2020-10-12 13:13:24,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:13:24,262 INFO L225 Difference]: With dead ends: 7136 [2020-10-12 13:13:24,263 INFO L226 Difference]: Without dead ends: 4258 [2020-10-12 13:13:24,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 13:13:24,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4258 states. [2020-10-12 13:13:24,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4258 to 4228. [2020-10-12 13:13:24,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4228 states. [2020-10-12 13:13:24,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4228 states to 4228 states and 5329 transitions. [2020-10-12 13:13:24,362 INFO L78 Accepts]: Start accepts. Automaton has 4228 states and 5329 transitions. Word has length 346 [2020-10-12 13:13:24,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:13:24,363 INFO L479 AbstractCegarLoop]: Abstraction has 4228 states and 5329 transitions. [2020-10-12 13:13:24,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:13:24,363 INFO L276 IsEmpty]: Start isEmpty. Operand 4228 states and 5329 transitions. [2020-10-12 13:13:24,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-12 13:13:24,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:13:24,374 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:13:24,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 13:13:24,374 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:13:24,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:13:24,375 INFO L82 PathProgramCache]: Analyzing trace with hash 286728855, now seen corresponding path program 1 times [2020-10-12 13:13:24,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:13:24,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106206139] [2020-10-12 13:13:24,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:13:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:24,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:24,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:24,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:25,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:28,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:28,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 361 [2020-10-12 13:13:28,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:13:28,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3963 [2020-10-12 13:13:28,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:28,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:13:28,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:13:28,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 209 [2020-10-12 13:13:28,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:28,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:13:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:28,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:28,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:28,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:13:28,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:28,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:13:28,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:13:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:13:28,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:28,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:13:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:28,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:28,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:28,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 13:13:28,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:28,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 13:13:28,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:28,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:28,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:13:28,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 13:13:28,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:28,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 13:13:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:28,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:28,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:28,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:13:28,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-12 13:13:28,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:28,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:13:28,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:13:28,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:13:28,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:28,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-12 13:13:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:28,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:28,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:29,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:29,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:13:29,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:13:29,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-12 13:13:29,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:13:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:13:29,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:29,480 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 179 proven. 226 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 13:13:29,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106206139] [2020-10-12 13:13:29,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:13:29,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 13:13:29,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622732479] [2020-10-12 13:13:29,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 13:13:29,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:13:29,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 13:13:29,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:13:29,483 INFO L87 Difference]: Start difference. First operand 4228 states and 5329 transitions. Second operand 10 states. [2020-10-12 13:13:33,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:13:33,114 INFO L93 Difference]: Finished difference Result 7204 states and 9571 transitions. [2020-10-12 13:13:33,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 13:13:33,116 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 347 [2020-10-12 13:13:33,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:13:33,138 INFO L225 Difference]: With dead ends: 7204 [2020-10-12 13:13:33,138 INFO L226 Difference]: Without dead ends: 4337 [2020-10-12 13:13:33,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-10-12 13:13:33,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4337 states. [2020-10-12 13:13:33,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4337 to 4227. [2020-10-12 13:13:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4227 states. [2020-10-12 13:13:33,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 5322 transitions. [2020-10-12 13:13:33,261 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 5322 transitions. Word has length 347 [2020-10-12 13:13:33,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:13:33,262 INFO L479 AbstractCegarLoop]: Abstraction has 4227 states and 5322 transitions. [2020-10-12 13:13:33,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 13:13:33,262 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 5322 transitions. [2020-10-12 13:13:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-10-12 13:13:33,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:13:33,275 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:13:33,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 13:13:33,276 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:13:33,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:13:33,276 INFO L82 PathProgramCache]: Analyzing trace with hash -879498382, now seen corresponding path program 1 times [2020-10-12 13:13:33,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:13:33,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339548402] [2020-10-12 13:13:33,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:13:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:33,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:33,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:33,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:34,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:34,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-12 13:13:34,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:13:34,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1594 [2020-10-12 13:13:34,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:34,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-12 13:13:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 13:13:34,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:35,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:13:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:35,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:35,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:35,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:13:35,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:35,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:13:35,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:35,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:35,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:35,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:35,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:35,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:13:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:35,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:35,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:35,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 13:13:35,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:35,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 13:13:35,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:35,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:13:35,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:35,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 13:13:35,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:35,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 13:13:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:35,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:35,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:35,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:13:35,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:35,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-12 13:13:35,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:35,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:35,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:13:35,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:13:35,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:35,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-12 13:13:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:35,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:35,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:35,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:13:35,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:35,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 13:13:35,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:35,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:35,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 13:13:35,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:35,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:35,492 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 246 proven. 73 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-12 13:13:35,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339548402] [2020-10-12 13:13:35,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:13:35,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:13:35,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105796352] [2020-10-12 13:13:35,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:13:35,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:13:35,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:13:35,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:13:35,494 INFO L87 Difference]: Start difference. First operand 4227 states and 5322 transitions. Second operand 7 states. [2020-10-12 13:13:38,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:13:38,234 INFO L93 Difference]: Finished difference Result 9100 states and 11702 transitions. [2020-10-12 13:13:38,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:13:38,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 348 [2020-10-12 13:13:38,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:13:38,257 INFO L225 Difference]: With dead ends: 9100 [2020-10-12 13:13:38,258 INFO L226 Difference]: Without dead ends: 5257 [2020-10-12 13:13:38,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:13:38,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5257 states. [2020-10-12 13:13:38,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5257 to 5205. [2020-10-12 13:13:38,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5205 states. [2020-10-12 13:13:38,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 6489 transitions. [2020-10-12 13:13:38,378 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 6489 transitions. Word has length 348 [2020-10-12 13:13:38,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:13:38,379 INFO L479 AbstractCegarLoop]: Abstraction has 5205 states and 6489 transitions. [2020-10-12 13:13:38,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:13:38,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 6489 transitions. [2020-10-12 13:13:38,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-10-12 13:13:38,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:13:38,392 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:13:38,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 13:13:38,392 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:13:38,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:13:38,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1208857342, now seen corresponding path program 1 times [2020-10-12 13:13:38,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:13:38,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581933737] [2020-10-12 13:13:38,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:13:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:38,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:38,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:39,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:39,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:39,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-12 13:13:39,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:13:39,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1336 [2020-10-12 13:13:39,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 300 [2020-10-12 13:13:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 13:13:39,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:39,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:13:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:39,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:39,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:39,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:13:39,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:39,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:13:39,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:39,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:39,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:13:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:39,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:39,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:39,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-12 13:13:39,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:13:39,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:39,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 13:13:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:40,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:40,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:40,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-12 13:13:40,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:40,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 13:13:40,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:13:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 13:13:40,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:40,241 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2020-10-12 13:13:40,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581933737] [2020-10-12 13:13:40,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:13:40,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:13:40,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537629833] [2020-10-12 13:13:40,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:13:40,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:13:40,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:13:40,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:13:40,245 INFO L87 Difference]: Start difference. First operand 5205 states and 6489 transitions. Second operand 5 states. [2020-10-12 13:13:42,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:13:42,475 INFO L93 Difference]: Finished difference Result 8869 states and 11163 transitions. [2020-10-12 13:13:42,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:13:42,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 352 [2020-10-12 13:13:42,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:13:42,495 INFO L225 Difference]: With dead ends: 8869 [2020-10-12 13:13:42,496 INFO L226 Difference]: Without dead ends: 5209 [2020-10-12 13:13:42,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:13:42,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2020-10-12 13:13:42,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5197. [2020-10-12 13:13:42,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5197 states. [2020-10-12 13:13:42,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 6467 transitions. [2020-10-12 13:13:42,623 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 6467 transitions. Word has length 352 [2020-10-12 13:13:42,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:13:42,624 INFO L479 AbstractCegarLoop]: Abstraction has 5197 states and 6467 transitions. [2020-10-12 13:13:42,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:13:42,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 6467 transitions. [2020-10-12 13:13:42,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-10-12 13:13:42,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:13:42,637 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:13:42,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 13:13:42,637 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:13:42,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:13:42,638 INFO L82 PathProgramCache]: Analyzing trace with hash -862990466, now seen corresponding path program 1 times [2020-10-12 13:13:42,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:13:42,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470280675] [2020-10-12 13:13:42,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:13:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:42,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:42,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:44,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:44,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-12 13:13:44,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:13:44,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1483 [2020-10-12 13:13:44,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:44,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:44,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-12 13:13:44,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 13:13:44,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:44,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:13:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:44,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:44,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:44,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:13:44,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:44,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 13:13:44,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:44,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:44,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:44,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:44,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:13:44,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:13:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:44,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:44,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:44,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 13:13:44,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:44,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 13:13:44,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:44,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:44,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:13:44,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 13:13:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:44,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:44,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:44,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 13:13:44,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:44,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 13:13:44,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:13:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:44,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 13:13:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:13:44,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-12 13:13:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:44,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:44,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:44,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:44,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:13:44,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:13:44,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-12 13:13:44,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:44,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:44,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:13:44,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:13:44,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 348 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-12 13:13:45,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470280675] [2020-10-12 13:13:45,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:13:45,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:13:45,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319505366] [2020-10-12 13:13:45,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:13:45,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:13:45,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:13:45,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:13:45,590 INFO L87 Difference]: Start difference. First operand 5197 states and 6467 transitions. Second operand 6 states. [2020-10-12 13:13:47,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:13:47,724 INFO L93 Difference]: Finished difference Result 8868 states and 11156 transitions. [2020-10-12 13:13:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:13:47,725 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 358 [2020-10-12 13:13:47,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:13:47,740 INFO L225 Difference]: With dead ends: 8868 [2020-10-12 13:13:47,740 INFO L226 Difference]: Without dead ends: 5219 [2020-10-12 13:13:47,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 13:13:47,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5219 states. [2020-10-12 13:13:47,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5219 to 5195. [2020-10-12 13:13:47,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5195 states. [2020-10-12 13:13:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 6442 transitions. [2020-10-12 13:13:47,861 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 6442 transitions. Word has length 358 [2020-10-12 13:13:47,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:13:47,861 INFO L479 AbstractCegarLoop]: Abstraction has 5195 states and 6442 transitions. [2020-10-12 13:13:47,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:13:47,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 6442 transitions. [2020-10-12 13:13:47,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-10-12 13:13:47,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:13:47,872 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:13:47,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 13:13:47,873 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:13:47,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:13:47,873 INFO L82 PathProgramCache]: Analyzing trace with hash -962331714, now seen corresponding path program 1 times [2020-10-12 13:13:47,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:13:47,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351132782] [2020-10-12 13:13:47,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:13:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:48,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:48,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:48,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:50,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:50,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-12 13:13:50,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:13:50,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2321 [2020-10-12 13:13:50,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-12 13:13:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 13:13:50,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:50,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:13:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:50,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:50,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:50,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:13:50,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:50,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:13:50,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:50,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:50,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:50,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:50,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:50,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:13:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:50,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:50,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:50,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 13:13:50,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:50,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:13:50,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:50,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:50,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:50,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:50,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:50,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 13:13:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:50,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:50,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:50,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:13:50,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:50,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 13:13:50,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:13:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:50,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 13:13:50,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:50,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-12 13:13:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:50,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:50,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:50,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:50,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:13:50,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:13:50,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-12 13:13:50,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:50,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:50,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:13:50,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:13:50,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:13:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-12 13:13:51,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351132782] [2020-10-12 13:13:51,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:13:51,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:13:51,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97649621] [2020-10-12 13:13:51,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:13:51,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:13:51,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:13:51,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:13:51,100 INFO L87 Difference]: Start difference. First operand 5195 states and 6442 transitions. Second operand 7 states. [2020-10-12 13:13:53,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:13:53,962 INFO L93 Difference]: Finished difference Result 8932 states and 11263 transitions. [2020-10-12 13:13:53,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:13:53,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 358 [2020-10-12 13:13:53,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:13:53,974 INFO L225 Difference]: With dead ends: 8932 [2020-10-12 13:13:53,974 INFO L226 Difference]: Without dead ends: 5285 [2020-10-12 13:13:53,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:13:53,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5285 states. [2020-10-12 13:13:54,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5285 to 5224. [2020-10-12 13:13:54,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5224 states. [2020-10-12 13:13:54,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 6492 transitions. [2020-10-12 13:13:54,084 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 6492 transitions. Word has length 358 [2020-10-12 13:13:54,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:13:54,085 INFO L479 AbstractCegarLoop]: Abstraction has 5224 states and 6492 transitions. [2020-10-12 13:13:54,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:13:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 6492 transitions. [2020-10-12 13:13:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-12 13:13:54,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:13:54,099 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-12 13:13:54,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 13:13:54,100 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:13:54,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:13:54,100 INFO L82 PathProgramCache]: Analyzing trace with hash 214808682, now seen corresponding path program 1 times [2020-10-12 13:13:54,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:13:54,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082998668] [2020-10-12 13:13:54,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:13:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:54,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:54,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:56,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:56,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-12 13:13:56,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:13:56,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2242 [2020-10-12 13:13:56,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:56,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:56,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 13:13:56,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:13:56,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:56,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:13:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:56,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:56,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:56,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:13:56,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:56,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:13:56,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:56,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:56,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:56,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:56,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:56,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:13:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:56,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:56,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:56,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-12 13:13:56,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:56,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 13:13:56,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:13:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:13:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-12 13:13:56,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:56,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 13:13:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:56,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:56,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:56,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 13:13:56,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:56,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 13:13:56,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:56,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:13:56,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:13:56,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:13:56,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:56,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-12 13:13:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:13:56,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:13:56,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:13:56,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:13:56,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:13:56,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 13:13:56,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:13:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:13:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 13:13:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:13:56,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:13:56,969 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 242 proven. 69 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-12 13:13:56,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082998668] [2020-10-12 13:13:56,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:13:56,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:13:56,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265835377] [2020-10-12 13:13:56,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:13:56,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:13:56,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:13:56,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:13:56,971 INFO L87 Difference]: Start difference. First operand 5224 states and 6492 transitions. Second operand 7 states. [2020-10-12 13:13:59,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:13:59,625 INFO L93 Difference]: Finished difference Result 11129 states and 14053 transitions. [2020-10-12 13:13:59,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:13:59,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 359 [2020-10-12 13:13:59,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:13:59,641 INFO L225 Difference]: With dead ends: 11129 [2020-10-12 13:13:59,642 INFO L226 Difference]: Without dead ends: 6289 [2020-10-12 13:13:59,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:13:59,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6289 states. [2020-10-12 13:13:59,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6289 to 6241. [2020-10-12 13:13:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6241 states. [2020-10-12 13:13:59,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 7766 transitions. [2020-10-12 13:13:59,785 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 7766 transitions. Word has length 359 [2020-10-12 13:13:59,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:13:59,785 INFO L479 AbstractCegarLoop]: Abstraction has 6241 states and 7766 transitions. [2020-10-12 13:13:59,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:13:59,785 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 7766 transitions. [2020-10-12 13:13:59,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-10-12 13:13:59,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:13:59,802 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:13:59,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 13:13:59,802 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:13:59,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:13:59,806 INFO L82 PathProgramCache]: Analyzing trace with hash -845388942, now seen corresponding path program 1 times [2020-10-12 13:13:59,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:13:59,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804378855] [2020-10-12 13:13:59,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:13:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:00,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:00,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:00,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-12 13:14:00,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:00,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-12 13:14:00,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:00,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:14:00,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 317 [2020-10-12 13:14:00,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 13:14:00,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:00,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:14:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:00,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:00,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:00,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:14:00,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:00,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:14:00,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:00,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:00,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:14:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:00,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:00,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:00,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-12 13:14:00,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:00,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 13:14:00,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:00,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:00,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:00,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:00,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:00,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 13:14:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:00,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:00,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:00,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 13:14:00,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:00,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-12 13:14:00,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:14:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-12 13:14:00,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:01,004 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-12 13:14:01,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804378855] [2020-10-12 13:14:01,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:14:01,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:14:01,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565421783] [2020-10-12 13:14:01,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:14:01,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:14:01,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:14:01,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:14:01,006 INFO L87 Difference]: Start difference. First operand 6241 states and 7766 transitions. Second operand 5 states. [2020-10-12 13:14:03,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:14:03,542 INFO L93 Difference]: Finished difference Result 15193 states and 19313 transitions. [2020-10-12 13:14:03,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:14:03,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 370 [2020-10-12 13:14:03,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:14:03,563 INFO L225 Difference]: With dead ends: 15193 [2020-10-12 13:14:03,563 INFO L226 Difference]: Without dead ends: 9336 [2020-10-12 13:14:03,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:14:03,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9336 states. [2020-10-12 13:14:03,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9336 to 8949. [2020-10-12 13:14:03,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8949 states. [2020-10-12 13:14:03,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 11219 transitions. [2020-10-12 13:14:03,730 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 11219 transitions. Word has length 370 [2020-10-12 13:14:03,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:14:03,731 INFO L479 AbstractCegarLoop]: Abstraction has 8949 states and 11219 transitions. [2020-10-12 13:14:03,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:14:03,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 11219 transitions. [2020-10-12 13:14:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2020-10-12 13:14:03,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:14:03,745 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:14:03,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 13:14:03,745 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:14:03,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:14:03,747 INFO L82 PathProgramCache]: Analyzing trace with hash 390486515, now seen corresponding path program 1 times [2020-10-12 13:14:03,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:14:03,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562025296] [2020-10-12 13:14:03,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:14:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:03,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:04,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:04,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:04,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 399 [2020-10-12 13:14:04,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:14:04,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 729 [2020-10-12 13:14:04,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:14:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-12 13:14:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 13:14:04,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:04,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:14:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:04,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:04,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:04,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:14:04,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:04,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:14:04,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:04,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:04,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:04,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:14:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:04,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:04,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:04,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 13:14:04,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:04,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:14:04,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:04,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:04,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:04,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:04,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:04,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 13:14:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:04,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:04,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:04,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 13:14:04,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:04,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 13:14:04,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:04,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:14:04,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:04,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 13:14:04,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:04,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-12 13:14:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:04,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:04,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:04,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:04,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:14:04,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:14:04,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-12 13:14:04,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:04,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:14:04,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:14:04,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:14:04,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:05,223 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 358 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-12 13:14:05,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562025296] [2020-10-12 13:14:05,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:14:05,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:14:05,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971051802] [2020-10-12 13:14:05,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:14:05,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:14:05,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:14:05,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:14:05,225 INFO L87 Difference]: Start difference. First operand 8949 states and 11219 transitions. Second operand 7 states. [2020-10-12 13:14:07,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:14:07,775 INFO L93 Difference]: Finished difference Result 15794 states and 20027 transitions. [2020-10-12 13:14:07,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:14:07,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 385 [2020-10-12 13:14:07,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:14:07,803 INFO L225 Difference]: With dead ends: 15794 [2020-10-12 13:14:07,803 INFO L226 Difference]: Without dead ends: 8969 [2020-10-12 13:14:07,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:14:07,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8969 states. [2020-10-12 13:14:08,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8969 to 8947. [2020-10-12 13:14:08,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8947 states. [2020-10-12 13:14:08,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 11194 transitions. [2020-10-12 13:14:08,032 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 11194 transitions. Word has length 385 [2020-10-12 13:14:08,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:14:08,033 INFO L479 AbstractCegarLoop]: Abstraction has 8947 states and 11194 transitions. [2020-10-12 13:14:08,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:14:08,034 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 11194 transitions. [2020-10-12 13:14:08,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2020-10-12 13:14:08,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:14:08,058 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:14:08,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 13:14:08,058 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:14:08,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:14:08,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1405924223, now seen corresponding path program 1 times [2020-10-12 13:14:08,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:14:08,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139676655] [2020-10-12 13:14:08,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:14:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:08,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:08,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:08,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:10,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:10,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:10,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 399 [2020-10-12 13:14:10,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:14:10,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2667 [2020-10-12 13:14:10,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:10,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 13:14:10,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-12 13:14:10,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 241 [2020-10-12 13:14:10,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:14:10,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:14:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:10,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:10,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:10,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:14:10,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:10,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:14:10,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:10,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:10,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:10,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:10,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:14:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:11,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:11,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:11,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-12 13:14:11,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:11,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-12 13:14:11,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:11,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:14:11,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:11,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 13:14:11,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:11,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 13:14:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:11,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:11,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:11,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:11,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 13:14:11,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:14:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-12 13:14:11,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:14:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:14:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:14:11,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:11,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-12 13:14:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:11,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:11,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:11,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:14:11,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:11,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-12 13:14:11,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:14:11,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:14:11,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:14:11,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 230 proven. 115 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-12 13:14:11,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139676655] [2020-10-12 13:14:11,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:14:11,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:14:11,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657345050] [2020-10-12 13:14:11,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:14:11,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:14:11,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:14:11,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:14:11,729 INFO L87 Difference]: Start difference. First operand 8947 states and 11194 transitions. Second operand 8 states. [2020-10-12 13:14:15,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:14:15,883 INFO L93 Difference]: Finished difference Result 19427 states and 24707 transitions. [2020-10-12 13:14:15,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 13:14:15,884 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 385 [2020-10-12 13:14:15,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:14:15,916 INFO L225 Difference]: With dead ends: 19427 [2020-10-12 13:14:15,916 INFO L226 Difference]: Without dead ends: 12624 [2020-10-12 13:14:15,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:14:15,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12624 states. [2020-10-12 13:14:16,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12624 to 12219. [2020-10-12 13:14:16,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12219 states. [2020-10-12 13:14:16,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12219 states to 12219 states and 15158 transitions. [2020-10-12 13:14:16,166 INFO L78 Accepts]: Start accepts. Automaton has 12219 states and 15158 transitions. Word has length 385 [2020-10-12 13:14:16,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:14:16,167 INFO L479 AbstractCegarLoop]: Abstraction has 12219 states and 15158 transitions. [2020-10-12 13:14:16,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:14:16,167 INFO L276 IsEmpty]: Start isEmpty. Operand 12219 states and 15158 transitions. [2020-10-12 13:14:16,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-10-12 13:14:16,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:14:16,186 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:14:16,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 13:14:16,186 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:14:16,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:14:16,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1546294755, now seen corresponding path program 1 times [2020-10-12 13:14:16,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:14:16,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167582976] [2020-10-12 13:14:16,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:14:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:16,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:16,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:17,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:17,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 407 [2020-10-12 13:14:17,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:14:17,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1592 [2020-10-12 13:14:17,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:17,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:14:17,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-12 13:14:17,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 13:14:17,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:17,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:14:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:17,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:17,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:17,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:14:17,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:17,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:14:17,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:17,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:17,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:17,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:17,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:17,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:14:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:17,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:18,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:18,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 13:14:18,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:18,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 13:14:18,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:18,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:14:18,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:18,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-12 13:14:18,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:18,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 13:14:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:18,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:18,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:18,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:14:18,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:18,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 13:14:18,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:18,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:14:18,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:14:18,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 13:14:18,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:18,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-10-12 13:14:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:18,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:18,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:18,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:14:18,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:18,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 13:14:18,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 13:14:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:18,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 281 proven. 93 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-12 13:14:18,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167582976] [2020-10-12 13:14:18,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:14:18,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:14:18,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238393732] [2020-10-12 13:14:18,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:14:18,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:14:18,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:14:18,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:14:18,415 INFO L87 Difference]: Start difference. First operand 12219 states and 15158 transitions. Second operand 7 states. [2020-10-12 13:14:21,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:14:21,233 INFO L93 Difference]: Finished difference Result 26946 states and 33535 transitions. [2020-10-12 13:14:21,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:14:21,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 393 [2020-10-12 13:14:21,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:14:21,274 INFO L225 Difference]: With dead ends: 26946 [2020-10-12 13:14:21,274 INFO L226 Difference]: Without dead ends: 14921 [2020-10-12 13:14:21,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:14:21,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14921 states. [2020-10-12 13:14:21,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14921 to 14327. [2020-10-12 13:14:21,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14327 states. [2020-10-12 13:14:21,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14327 states to 14327 states and 17714 transitions. [2020-10-12 13:14:21,611 INFO L78 Accepts]: Start accepts. Automaton has 14327 states and 17714 transitions. Word has length 393 [2020-10-12 13:14:21,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:14:21,612 INFO L479 AbstractCegarLoop]: Abstraction has 14327 states and 17714 transitions. [2020-10-12 13:14:21,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:14:21,612 INFO L276 IsEmpty]: Start isEmpty. Operand 14327 states and 17714 transitions. [2020-10-12 13:14:21,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2020-10-12 13:14:21,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:14:21,634 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:14:21,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 13:14:21,635 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:14:21,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:14:21,635 INFO L82 PathProgramCache]: Analyzing trace with hash 207569634, now seen corresponding path program 1 times [2020-10-12 13:14:21,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:14:21,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599588182] [2020-10-12 13:14:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:14:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:21,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:21,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:22,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:22,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:25,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:25,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 423 [2020-10-12 13:14:25,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:14:25,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3842 [2020-10-12 13:14:25,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:25,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:14:25,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-12 13:14:25,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 13:14:25,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:25,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:14:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:25,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:25,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:25,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:14:25,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:25,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:14:25,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:25,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:25,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:25,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:25,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:25,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:14:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:25,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:25,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:25,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-12 13:14:25,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:25,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:14:25,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:25,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:25,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:25,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:25,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:25,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 13:14:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:25,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:25,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:25,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 13:14:25,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:25,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 13:14:25,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:25,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:25,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:25,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:25,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:25,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-12 13:14:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:25,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:25,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:25,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 13:14:25,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:25,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 13:14:25,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:14:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 13:14:25,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 174 proven. 3 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2020-10-12 13:14:26,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599588182] [2020-10-12 13:14:26,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:14:26,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:14:26,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076076163] [2020-10-12 13:14:26,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:14:26,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:14:26,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:14:26,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:14:26,032 INFO L87 Difference]: Start difference. First operand 14327 states and 17714 transitions. Second operand 5 states. [2020-10-12 13:14:28,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:14:28,985 INFO L93 Difference]: Finished difference Result 28220 states and 35430 transitions. [2020-10-12 13:14:28,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:14:28,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 409 [2020-10-12 13:14:28,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:14:29,024 INFO L225 Difference]: With dead ends: 28220 [2020-10-12 13:14:29,024 INFO L226 Difference]: Without dead ends: 15469 [2020-10-12 13:14:29,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:14:29,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15469 states. [2020-10-12 13:14:29,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15469 to 15067. [2020-10-12 13:14:29,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15067 states. [2020-10-12 13:14:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15067 states to 15067 states and 18447 transitions. [2020-10-12 13:14:29,294 INFO L78 Accepts]: Start accepts. Automaton has 15067 states and 18447 transitions. Word has length 409 [2020-10-12 13:14:29,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:14:29,295 INFO L479 AbstractCegarLoop]: Abstraction has 15067 states and 18447 transitions. [2020-10-12 13:14:29,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:14:29,295 INFO L276 IsEmpty]: Start isEmpty. Operand 15067 states and 18447 transitions. [2020-10-12 13:14:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2020-10-12 13:14:29,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:14:29,307 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:14:29,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 13:14:29,307 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:14:29,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:14:29,308 INFO L82 PathProgramCache]: Analyzing trace with hash -13473964, now seen corresponding path program 1 times [2020-10-12 13:14:29,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:14:29,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140253187] [2020-10-12 13:14:29,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:14:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:29,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:29,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:30,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:30,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 428 [2020-10-12 13:14:30,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:14:30,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1238 [2020-10-12 13:14:30,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:30,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:14:30,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-12 13:14:30,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 13:14:30,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:30,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:14:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:30,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:30,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:30,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:14:30,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:30,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:14:30,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:30,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:14:30,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:14:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:30,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:30,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:30,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-12 13:14:30,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:30,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 13:14:30,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:30,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:14:30,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:30,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 13:14:30,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:30,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 13:14:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:30,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:30,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:30,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:14:30,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:30,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 13:14:30,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:30,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:14:30,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:14:30,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 13:14:30,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:31,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-10-12 13:14:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:31,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:31,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:31,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:14:31,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:31,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:14:31,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:31,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:31,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 13:14:31,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:31,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:31,888 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 281 proven. 93 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-12 13:14:31,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140253187] [2020-10-12 13:14:31,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:14:31,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:14:31,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156530799] [2020-10-12 13:14:31,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:14:31,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:14:31,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:14:31,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:14:31,891 INFO L87 Difference]: Start difference. First operand 15067 states and 18447 transitions. Second operand 7 states. [2020-10-12 13:14:35,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:14:35,588 INFO L93 Difference]: Finished difference Result 31135 states and 38522 transitions. [2020-10-12 13:14:35,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 13:14:35,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 414 [2020-10-12 13:14:35,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:14:35,631 INFO L225 Difference]: With dead ends: 31135 [2020-10-12 13:14:35,632 INFO L226 Difference]: Without dead ends: 16258 [2020-10-12 13:14:35,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:14:35,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16258 states. [2020-10-12 13:14:35,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16258 to 16206. [2020-10-12 13:14:35,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16206 states. [2020-10-12 13:14:35,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16206 states to 16206 states and 19702 transitions. [2020-10-12 13:14:35,905 INFO L78 Accepts]: Start accepts. Automaton has 16206 states and 19702 transitions. Word has length 414 [2020-10-12 13:14:35,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:14:35,905 INFO L479 AbstractCegarLoop]: Abstraction has 16206 states and 19702 transitions. [2020-10-12 13:14:35,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:14:35,906 INFO L276 IsEmpty]: Start isEmpty. Operand 16206 states and 19702 transitions. [2020-10-12 13:14:35,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2020-10-12 13:14:35,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:14:35,932 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2020-10-12 13:14:35,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 13:14:35,932 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:14:35,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:14:35,933 INFO L82 PathProgramCache]: Analyzing trace with hash 535622238, now seen corresponding path program 1 times [2020-10-12 13:14:35,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:14:35,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567242174] [2020-10-12 13:14:35,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:14:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:36,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:36,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:38,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:38,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:39,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:41,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:41,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 661 [2020-10-12 13:14:41,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:14:41,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-12 13:14:41,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:41,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 13:14:41,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 377 [2020-10-12 13:14:41,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 283 [2020-10-12 13:14:41,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:41,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:14:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:41,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:41,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:41,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:14:41,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:41,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:14:41,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:41,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:41,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:41,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:41,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:41,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:14:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:41,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:41,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:41,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-12 13:14:41,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:41,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:14:41,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:41,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:41,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 13:14:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:41,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:41,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:41,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 13:14:41,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:41,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:14:41,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:41,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:41,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-12 13:14:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:41,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:41,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:41,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:14:41,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:41,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 13:14:41,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:41,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:14:41,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:41,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 13:14:41,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:41,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2020-10-12 13:14:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:41,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:41,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:41,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 13:14:41,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:41,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 13:14:41,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:41,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:14:41,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:14:41,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 13:14:41,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:41,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2020-10-12 13:14:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:41,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:41,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:41,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:14:41,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:41,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-12 13:14:41,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:14:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:14:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:14:41,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:41,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1355 backedges. 797 proven. 125 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2020-10-12 13:14:41,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567242174] [2020-10-12 13:14:41,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:14:41,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:14:41,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993165724] [2020-10-12 13:14:41,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:14:41,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:14:41,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:14:41,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:14:41,979 INFO L87 Difference]: Start difference. First operand 16206 states and 19702 transitions. Second operand 8 states. [2020-10-12 13:14:46,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:14:46,716 INFO L93 Difference]: Finished difference Result 38537 states and 47242 transitions. [2020-10-12 13:14:46,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 13:14:46,719 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 643 [2020-10-12 13:14:46,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:14:46,780 INFO L225 Difference]: With dead ends: 38537 [2020-10-12 13:14:46,780 INFO L226 Difference]: Without dead ends: 24856 [2020-10-12 13:14:46,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2020-10-12 13:14:46,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24856 states. [2020-10-12 13:14:47,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24856 to 24546. [2020-10-12 13:14:47,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24546 states. [2020-10-12 13:14:47,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24546 states to 24546 states and 29802 transitions. [2020-10-12 13:14:47,193 INFO L78 Accepts]: Start accepts. Automaton has 24546 states and 29802 transitions. Word has length 643 [2020-10-12 13:14:47,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:14:47,195 INFO L479 AbstractCegarLoop]: Abstraction has 24546 states and 29802 transitions. [2020-10-12 13:14:47,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:14:47,195 INFO L276 IsEmpty]: Start isEmpty. Operand 24546 states and 29802 transitions. [2020-10-12 13:14:47,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2020-10-12 13:14:47,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:14:47,227 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 13:14:47,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 13:14:47,227 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:14:47,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:14:47,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1790202536, now seen corresponding path program 1 times [2020-10-12 13:14:47,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:14:47,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908804362] [2020-10-12 13:14:47,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:14:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:47,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:47,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:47,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:49,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:52,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:52,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 705 [2020-10-12 13:14:52,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:14:52,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-12 13:14:52,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:14:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 377 [2020-10-12 13:14:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-12 13:14:52,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:52,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:14:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:52,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:52,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:52,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:14:52,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:52,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:14:52,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:52,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:52,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:52,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:52,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:14:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:52,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:52,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:52,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-12 13:14:52,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:52,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:14:52,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:52,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:52,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:52,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:52,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:52,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 13:14:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:52,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:52,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:52,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 13:14:52,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:52,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:14:52,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:52,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:14:52,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:52,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:14:52,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:52,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-12 13:14:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:52,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:52,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:52,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:14:52,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:52,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 13:14:52,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:14:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:14:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 13:14:52,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:52,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2020-10-12 13:14:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:52,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:53,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:53,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 13:14:53,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:14:53,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-10-12 13:14:53,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:14:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:14:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 13:14:53,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:53,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2020-10-12 13:14:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:53,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:53,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:53,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:14:53,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:14:53,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:14:53,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-12 13:14:53,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:14:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:14:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:14:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:14:53,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:14:53,875 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2020-10-12 13:14:54,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1363 backedges. 928 proven. 93 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2020-10-12 13:14:54,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908804362] [2020-10-12 13:14:54,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:14:54,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 13:14:54,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127389668] [2020-10-12 13:14:54,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 13:14:54,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:14:54,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 13:14:54,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:14:54,597 INFO L87 Difference]: Start difference. First operand 24546 states and 29802 transitions. Second operand 10 states. [2020-10-12 13:14:56,069 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-10-12 13:14:58,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:14:58,161 INFO L93 Difference]: Finished difference Result 44179 states and 53820 transitions. [2020-10-12 13:14:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 13:14:58,162 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 687 [2020-10-12 13:14:58,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:14:58,209 INFO L225 Difference]: With dead ends: 44179 [2020-10-12 13:14:58,209 INFO L226 Difference]: Without dead ends: 24450 [2020-10-12 13:14:58,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-12 13:14:58,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24450 states. [2020-10-12 13:14:58,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24450 to 22414. [2020-10-12 13:14:58,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22414 states. [2020-10-12 13:14:58,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22414 states to 22414 states and 27149 transitions. [2020-10-12 13:14:58,589 INFO L78 Accepts]: Start accepts. Automaton has 22414 states and 27149 transitions. Word has length 687 [2020-10-12 13:14:58,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:14:58,590 INFO L479 AbstractCegarLoop]: Abstraction has 22414 states and 27149 transitions. [2020-10-12 13:14:58,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 13:14:58,590 INFO L276 IsEmpty]: Start isEmpty. Operand 22414 states and 27149 transitions. [2020-10-12 13:14:58,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2020-10-12 13:14:58,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:14:58,623 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:14:58,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 13:14:58,624 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:14:58,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:14:58,624 INFO L82 PathProgramCache]: Analyzing trace with hash 536745456, now seen corresponding path program 1 times [2020-10-12 13:14:58,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:14:58,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817930935] [2020-10-12 13:14:58,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:14:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:14:58,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:58,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:58,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:14:59,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:03,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:03,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:03,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 736 [2020-10-12 13:15:03,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:15:03,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 13:15:03,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:03,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 13:15:03,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 377 [2020-10-12 13:15:03,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-12 13:15:03,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:03,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:15:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:03,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:03,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:03,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:15:03,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:15:03,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:15:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:15:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:15:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:03,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:15:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:03,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:03,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:03,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-12 13:15:03,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:03,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:15:03,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:03,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:15:03,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:15:03,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:15:03,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:03,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 13:15:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:03,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:03,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:03,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 13:15:03,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:03,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 13:15:03,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:03,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:15:03,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:15:03,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:15:03,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:03,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-12 13:15:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:04,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:04,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:04,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:15:04,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:04,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 13:15:04,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:04,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:15:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:15:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 13:15:04,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:04,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2020-10-12 13:15:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:04,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:04,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:04,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:04,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 13:15:04,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:15:04,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-12 13:15:04,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:15:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:15:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 13:15:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:04,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2020-10-12 13:15:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:04,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:04,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:04,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:15:04,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:04,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 13:15:04,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:15:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:15:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:15:04,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:04,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2020-10-12 13:15:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:04,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:04,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:04,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:04,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:15:04,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:15:04,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-12 13:15:04,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:04,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:15:04,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:15:04,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:15:04,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1777 backedges. 1269 proven. 157 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2020-10-12 13:15:05,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817930935] [2020-10-12 13:15:05,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:15:05,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 13:15:05,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363021952] [2020-10-12 13:15:05,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 13:15:05,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:15:05,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 13:15:05,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:15:05,688 INFO L87 Difference]: Start difference. First operand 22414 states and 27149 transitions. Second operand 10 states. [2020-10-12 13:15:05,918 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-10-12 13:15:10,090 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-10-12 13:15:10,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:15:10,159 INFO L93 Difference]: Finished difference Result 41778 states and 51842 transitions. [2020-10-12 13:15:10,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 13:15:10,160 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 716 [2020-10-12 13:15:10,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:15:10,214 INFO L225 Difference]: With dead ends: 41778 [2020-10-12 13:15:10,214 INFO L226 Difference]: Without dead ends: 24183 [2020-10-12 13:15:10,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-10-12 13:15:10,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2020-10-12 13:15:10,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 22586. [2020-10-12 13:15:10,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22586 states. [2020-10-12 13:15:10,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22586 states to 22586 states and 27316 transitions. [2020-10-12 13:15:10,607 INFO L78 Accepts]: Start accepts. Automaton has 22586 states and 27316 transitions. Word has length 716 [2020-10-12 13:15:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:15:10,608 INFO L479 AbstractCegarLoop]: Abstraction has 22586 states and 27316 transitions. [2020-10-12 13:15:10,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 13:15:10,608 INFO L276 IsEmpty]: Start isEmpty. Operand 22586 states and 27316 transitions. [2020-10-12 13:15:10,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2020-10-12 13:15:10,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:15:10,637 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-12 13:15:10,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 13:15:10,637 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:15:10,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:15:10,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1271830152, now seen corresponding path program 1 times [2020-10-12 13:15:10,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:15:10,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586233290] [2020-10-12 13:15:10,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:15:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:10,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:10,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:11,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:11,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:15,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:15,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 807 [2020-10-12 13:15:15,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:15:15,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-12 13:15:15,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:15,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:15:15,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 377 [2020-10-12 13:15:15,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-12 13:15:15,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:15,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:15:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:15,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:15,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:15,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:15:15,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:15,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:15:15,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:15:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:15:15,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:15:15,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:15,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:15:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:15,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:15,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:15,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-12 13:15:15,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:15,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 13:15:15,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:15,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:15:15,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:15:15,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:15:15,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:15,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 13:15:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:15,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:15,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:15,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 13:15:15,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:15,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:15:15,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:15,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:15:15,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:15:15,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:15:15,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:16,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-12 13:15:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:16,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:16,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:16,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:15:16,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:16,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 13:15:16,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:15:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:15:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 13:15:16,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:16,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2020-10-12 13:15:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:16,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:16,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:16,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 13:15:16,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:16,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-12 13:15:16,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:15:16,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:15:16,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-12 13:15:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:16,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2020-10-12 13:15:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:16,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:16,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:16,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 13:15:16,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:16,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 13:15:16,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:16,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:15:16,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:15:16,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 13:15:16,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:16,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2020-10-12 13:15:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:15:16,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:15:16,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:15:16,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:15:16,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:15:16,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 13:15:16,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:15:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:15:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 13:15:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:15:16,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:15:16,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1989 backedges. 1072 proven. 186 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2020-10-12 13:15:16,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586233290] [2020-10-12 13:15:16,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:15:16,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 13:15:16,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875398660] [2020-10-12 13:15:16,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 13:15:16,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:15:16,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 13:15:16,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-12 13:15:16,986 INFO L87 Difference]: Start difference. First operand 22586 states and 27316 transitions. Second operand 9 states. [2020-10-12 13:15:24,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:15:24,054 INFO L93 Difference]: Finished difference Result 50820 states and 61950 transitions. [2020-10-12 13:15:24,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 13:15:24,056 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 787 [2020-10-12 13:15:24,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:15:24,056 INFO L225 Difference]: With dead ends: 50820 [2020-10-12 13:15:24,056 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 13:15:24,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2020-10-12 13:15:24,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 13:15:24,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 13:15:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 13:15:24,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 13:15:24,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 787 [2020-10-12 13:15:24,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:15:24,102 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 13:15:24,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 13:15:24,102 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 13:15:24,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 13:15:24,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 13:15:24,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 13:15:29,158 WARN L193 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 837 DAG size of output: 748 [2020-10-12 13:15:31,605 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 837 DAG size of output: 748 [2020-10-12 13:15:31,792 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 33 [2020-10-12 13:15:37,831 WARN L193 SmtUtils]: Spent 5.99 s on a formula simplification. DAG size of input: 812 DAG size of output: 109 [2020-10-12 13:15:43,577 WARN L193 SmtUtils]: Spent 5.70 s on a formula simplification. DAG size of input: 748 DAG size of output: 91 [2020-10-12 13:15:49,327 WARN L193 SmtUtils]: Spent 5.74 s on a formula simplification. DAG size of input: 748 DAG size of output: 91 [2020-10-12 13:15:49,339 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 13:15:49,339 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a23~0 |old(~a23~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a29~0 |old(~a29~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a3~0 |old(~a3~0)|)) [2020-10-12 13:15:49,340 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 13:15:49,340 INFO L268 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-12 13:15:49,340 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-12 13:15:49,340 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-12 13:15:49,340 INFO L268 CegarLoopResult]: For program point L566(lines 566 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,340 INFO L268 CegarLoopResult]: For program point L500(lines 500 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,340 INFO L268 CegarLoopResult]: For program point L170-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,340 INFO L268 CegarLoopResult]: For program point L104-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,341 INFO L268 CegarLoopResult]: For program point L38-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,341 INFO L268 CegarLoopResult]: For program point L963(lines 963 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,341 INFO L268 CegarLoopResult]: For program point L831(lines 831 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,341 INFO L268 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-12 13:15:49,341 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-12 13:15:49,341 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-12 13:15:49,341 INFO L268 CegarLoopResult]: For program point L898(lines 898 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,341 INFO L268 CegarLoopResult]: For program point L436(lines 436 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,342 INFO L268 CegarLoopResult]: For program point L370(lines 370 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,342 INFO L268 CegarLoopResult]: For program point L635(lines 635 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,342 INFO L268 CegarLoopResult]: For program point L305(lines 305 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,342 INFO L268 CegarLoopResult]: For program point L173-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,342 INFO L268 CegarLoopResult]: For program point L107-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,342 INFO L268 CegarLoopResult]: For program point L41-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,342 INFO L268 CegarLoopResult]: For program point L240(lines 240 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,342 INFO L268 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-12 13:15:49,342 INFO L268 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-12 13:15:49,343 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-12 13:15:49,343 INFO L268 CegarLoopResult]: For program point L769(lines 769 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,343 INFO L268 CegarLoopResult]: For program point L836(lines 836 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,343 INFO L268 CegarLoopResult]: For program point L572(lines 572 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,343 INFO L268 CegarLoopResult]: For program point L176-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,343 INFO L268 CegarLoopResult]: For program point L110-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,343 INFO L268 CegarLoopResult]: For program point L44-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,343 INFO L268 CegarLoopResult]: For program point L969(lines 969 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,343 INFO L268 CegarLoopResult]: For program point L903(lines 903 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,344 INFO L268 CegarLoopResult]: For program point L507(lines 507 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,344 INFO L268 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-12 13:15:49,344 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-12 13:15:49,344 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-12 13:15:49,344 INFO L268 CegarLoopResult]: For program point L970(lines 970 980) no Hoare annotation was computed. [2020-10-12 13:15:49,344 INFO L268 CegarLoopResult]: For program point L904(lines 904 914) no Hoare annotation was computed. [2020-10-12 13:15:49,344 INFO L268 CegarLoopResult]: For program point L970-2(lines 970 980) no Hoare annotation was computed. [2020-10-12 13:15:49,344 INFO L268 CegarLoopResult]: For program point L904-2(lines 904 914) no Hoare annotation was computed. [2020-10-12 13:15:49,344 INFO L268 CegarLoopResult]: For program point L706(lines 706 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,344 INFO L268 CegarLoopResult]: For program point L310(lines 310 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,345 INFO L268 CegarLoopResult]: For program point L575(lines 575 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,345 INFO L268 CegarLoopResult]: For program point L443(lines 443 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,345 INFO L268 CegarLoopResult]: For program point L377(lines 377 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,345 INFO L268 CegarLoopResult]: For program point L179-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,345 INFO L268 CegarLoopResult]: For program point L113-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,345 INFO L268 CegarLoopResult]: For program point L47-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,345 INFO L268 CegarLoopResult]: For program point L774(lines 774 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,345 INFO L268 CegarLoopResult]: For program point L642(lines 642 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,345 INFO L268 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-12 13:15:49,345 INFO L268 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-12 13:15:49,346 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-12 13:15:49,346 INFO L268 CegarLoopResult]: For program point L841(lines 841 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,346 INFO L268 CegarLoopResult]: For program point L247(lines 247 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,346 INFO L268 CegarLoopResult]: For program point L182-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,346 INFO L268 CegarLoopResult]: For program point L116-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,346 INFO L268 CegarLoopResult]: For program point L50-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,346 INFO L268 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-12 13:15:49,346 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-12 13:15:49,346 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-12 13:15:49,346 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,346 INFO L268 CegarLoopResult]: For program point L712(lines 712 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,347 INFO L268 CegarLoopResult]: For program point L514(lines 514 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,347 INFO L268 CegarLoopResult]: For program point L647(lines 647 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,347 INFO L268 CegarLoopResult]: For program point L581(lines 581 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,347 INFO L268 CegarLoopResult]: For program point L515(lines 515 525) no Hoare annotation was computed. [2020-10-12 13:15:49,347 INFO L268 CegarLoopResult]: For program point L515-2(lines 515 525) no Hoare annotation was computed. [2020-10-12 13:15:49,347 INFO L268 CegarLoopResult]: For program point L317(lines 317 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,347 INFO L268 CegarLoopResult]: For program point L185-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,347 INFO L268 CegarLoopResult]: For program point L119-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,347 INFO L268 CegarLoopResult]: For program point L53-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,347 INFO L268 CegarLoopResult]: For program point L846(lines 846 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,347 INFO L268 CegarLoopResult]: For program point L780(lines 780 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,348 INFO L268 CegarLoopResult]: For program point L648(lines 648 657) no Hoare annotation was computed. [2020-10-12 13:15:49,348 INFO L268 CegarLoopResult]: For program point L648-2(lines 648 657) no Hoare annotation was computed. [2020-10-12 13:15:49,348 INFO L268 CegarLoopResult]: For program point L450(lines 450 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,348 INFO L268 CegarLoopResult]: For program point L384(lines 384 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,348 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-12 13:15:49,348 INFO L268 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-12 13:15:49,348 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-12 13:15:49,348 INFO L268 CegarLoopResult]: For program point L254(lines 254 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,348 INFO L268 CegarLoopResult]: For program point L188-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,348 INFO L268 CegarLoopResult]: For program point L122-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,349 INFO L268 CegarLoopResult]: For program point L56-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,349 INFO L268 CegarLoopResult]: For program point L981(lines 981 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,349 INFO L268 CegarLoopResult]: For program point L915(lines 915 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,349 INFO L268 CegarLoopResult]: For program point L717(lines 717 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,349 INFO L268 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-12 13:15:49,349 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-12 13:15:49,349 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-12 13:15:49,349 INFO L268 CegarLoopResult]: For program point L916(lines 916 926) no Hoare annotation was computed. [2020-10-12 13:15:49,349 INFO L268 CegarLoopResult]: For program point L916-2(lines 916 926) no Hoare annotation was computed. [2020-10-12 13:15:49,350 INFO L268 CegarLoopResult]: For program point L718(lines 718 730) no Hoare annotation was computed. [2020-10-12 13:15:49,350 INFO L268 CegarLoopResult]: For program point L718-2(lines 718 730) no Hoare annotation was computed. [2020-10-12 13:15:49,350 INFO L268 CegarLoopResult]: For program point L586(lines 586 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,350 INFO L268 CegarLoopResult]: For program point L322(lines 322 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,350 INFO L268 CegarLoopResult]: For program point L587(lines 587 597) no Hoare annotation was computed. [2020-10-12 13:15:49,350 INFO L268 CegarLoopResult]: For program point L587-2(lines 587 597) no Hoare annotation was computed. [2020-10-12 13:15:49,350 INFO L268 CegarLoopResult]: For program point L191-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,350 INFO L268 CegarLoopResult]: For program point L125-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,350 INFO L268 CegarLoopResult]: For program point L59-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,350 INFO L268 CegarLoopResult]: For program point L852(lines 852 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,351 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 1026) the Hoare annotation is: (let ((.cse2 (= 10 |old(~a25~0)|))) (let ((.cse3 (not (<= |old(~a29~0)| 599999))) (.cse6 (not .cse2)) (.cse0 (not (= |old(~a4~0)| 1))) (.cse4 (not (= ~a8~0 15))) (.cse5 (not (= ~a3~0 1))) (.cse7 (not (<= |old(~a29~0)| 599998))) (.cse1 (and (= ~a25~0 |old(~a25~0)|) (= ~a23~0 |old(~a23~0)|) (= ~a29~0 |old(~a29~0)|) (= ~a4~0 |old(~a4~0)|)))) (and (or .cse0 .cse1 (not (<= |old(~a29~0)| 275))) (or .cse0 .cse2 .cse3 (not (<= |old(~a25~0)| 9)) (not (<= (+ |old(~a23~0)| 213) 0)) .cse4 .cse1 .cse5) (or .cse0 .cse2 (not (<= 0 (+ |old(~a23~0)| 4))) .cse4 .cse1 (not (= 11 |old(~a25~0)|)) (not (<= |old(~a23~0)| 85)) .cse5) (or .cse0 (not (<= 308 |old(~a23~0)|)) .cse3 .cse4 (not (<= |old(~a23~0)| 599999)) .cse1 .cse5) (or .cse0 .cse4 .cse6 .cse1 (not (<= (+ |old(~a23~0)| 61) 0)) .cse5) (or .cse7 .cse1 (not (<= (+ |old(~a23~0)| 43) 0))) (or (not (<= 180 |old(~a23~0)|)) (not (<= |old(~a23~0)| 262)) .cse0 .cse4 (not (= 13 |old(~a25~0)|)) .cse1 .cse5) (or .cse0 (not (<= (+ |old(~a23~0)| 103613) 0)) .cse6 .cse1) (or .cse0 .cse2 .cse4 (not (<= 0 (+ |old(~a23~0)| 42))) (not (<= |old(~a23~0)| 137)) .cse1 (not (= 9 |old(~a25~0)|)) .cse5) (or .cse0 .cse7 (not (<= 199 |old(~a23~0)|)) .cse4 .cse1 .cse5) (or (not (<= |old(~a29~0)| 244)) .cse1) (or .cse2 .cse7 .cse1)))) [2020-10-12 13:15:49,351 INFO L268 CegarLoopResult]: For program point L456(lines 456 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,351 INFO L268 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-12 13:15:49,351 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-12 13:15:49,351 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-12 13:15:49,351 INFO L268 CegarLoopResult]: For program point L787(lines 787 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,352 INFO L268 CegarLoopResult]: For program point L391(lines 391 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,352 INFO L268 CegarLoopResult]: For program point L260(lines 260 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,352 INFO L268 CegarLoopResult]: For program point L194-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,352 INFO L268 CegarLoopResult]: For program point L128-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,352 INFO L268 CegarLoopResult]: For program point L62-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,352 INFO L268 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-12 13:15:49,352 INFO L268 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-12 13:15:49,352 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-12 13:15:49,352 INFO L268 CegarLoopResult]: For program point L988(lines 988 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,352 INFO L268 CegarLoopResult]: For program point L658(lines 658 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,353 INFO L268 CegarLoopResult]: For program point L526(lines 526 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,353 INFO L268 CegarLoopResult]: For program point L329(lines 329 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,353 INFO L268 CegarLoopResult]: For program point L197-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,353 INFO L268 CegarLoopResult]: For program point L131-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,353 INFO L268 CegarLoopResult]: For program point L65-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,353 INFO L268 CegarLoopResult]: For program point L792(lines 792 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,353 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-12 13:15:49,353 INFO L268 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-12 13:15:49,353 INFO L268 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-12 13:15:49,353 INFO L268 CegarLoopResult]: For program point L859(lines 859 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,353 INFO L268 CegarLoopResult]: For program point L463(lines 463 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,354 INFO L268 CegarLoopResult]: For program point L265(lines 265 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,354 INFO L268 CegarLoopResult]: For program point L398(lines 398 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,354 INFO L268 CegarLoopResult]: For program point L200-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,354 INFO L268 CegarLoopResult]: For program point L134-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,354 INFO L268 CegarLoopResult]: For program point L68-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,354 INFO L268 CegarLoopResult]: For program point L993(lines 993 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,354 INFO L268 CegarLoopResult]: For program point L927(lines 927 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,354 INFO L268 CegarLoopResult]: For program point L663(lines 663 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,354 INFO L268 CegarLoopResult]: For program point L531(lines 531 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,354 INFO L268 CegarLoopResult]: For program point L399(lines 399 410) no Hoare annotation was computed. [2020-10-12 13:15:49,355 INFO L268 CegarLoopResult]: For program point L399-2(lines 399 410) no Hoare annotation was computed. [2020-10-12 13:15:49,355 INFO L268 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-12 13:15:49,355 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-12 13:15:49,355 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-12 13:15:49,355 INFO L268 CegarLoopResult]: For program point L598(lines 598 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,355 INFO L268 CegarLoopResult]: For program point L334(lines 334 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,355 INFO L268 CegarLoopResult]: For program point L268(lines 268 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,355 INFO L268 CegarLoopResult]: For program point L731(lines 731 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,355 INFO L268 CegarLoopResult]: For program point L203-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,355 INFO L268 CegarLoopResult]: For program point L137-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,355 INFO L268 CegarLoopResult]: For program point L71-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L865(lines 865 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L799(lines 799 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L932(lines 932 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L866(lines 866 875) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L866-2(lines 866 875) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L470(lines 470 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L140-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L74-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L603(lines 603 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point L537(lines 537 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,356 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 180) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L1000(lines 1000 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L670(lines 670 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L604(lines 604 614) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L604-2(lines 604 614) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L340(lines 340 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L275(lines 275 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L143-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L77-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L804(lines 804 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L738(lines 738 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L805(lines 805 815) no Hoare annotation was computed. [2020-10-12 13:15:49,357 INFO L268 CegarLoopResult]: For program point L805-2(lines 805 815) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L542(lines 542 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L146-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L80-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L1005(lines 1005 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L939(lines 939 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L675(lines 675 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L477(lines 477 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L411(lines 411 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L940(lines 940 952) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L940-2(lines 940 952) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L478(lines 478 486) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L478-2(lines 478 486) no Hoare annotation was computed. [2020-10-12 13:15:49,358 INFO L268 CegarLoopResult]: For program point L346(lines 346 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L280(lines 280 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L214(lines 214 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L743(lines 743 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L149-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L83-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L876(lines 876 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L152-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L86-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L681(lines 681 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L615(lines 615 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L549(lines 549 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L417(lines 417 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,359 INFO L268 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L1012(lines 1012 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L881(lines 881 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L353(lines 353 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L287(lines 287 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L221(lines 221 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L155-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L89-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L23-2(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L816(lines 816 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L750(lines 750 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-12 13:15:49,360 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L487(lines 487 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L488(lines 488 499) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L422(lines 422 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L488-2(lines 488 499) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L158-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L92-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L26-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L1017(lines 1017 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L621(lines 621 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L555(lines 555 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L886(lines 886 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,361 INFO L268 CegarLoopResult]: For program point L688(lines 688 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,362 INFO L268 CegarLoopResult]: For program point L358(lines 358 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,362 INFO L268 CegarLoopResult]: For program point L953(lines 953 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,362 INFO L268 CegarLoopResult]: For program point L227(lines 227 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,362 INFO L268 CegarLoopResult]: For program point L161-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,362 INFO L268 CegarLoopResult]: For program point L95-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,362 INFO L268 CegarLoopResult]: For program point L29-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,362 INFO L268 CegarLoopResult]: For program point L822(lines 822 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,362 INFO L268 CegarLoopResult]: For program point L294(lines 294 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,362 INFO L268 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-12 13:15:49,363 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-12 13:15:49,363 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-12 13:15:49,363 INFO L268 CegarLoopResult]: For program point L757(lines 757 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,363 INFO L268 CegarLoopResult]: For program point L758(lines 758 768) no Hoare annotation was computed. [2020-10-12 13:15:49,363 INFO L268 CegarLoopResult]: For program point L758-2(lines 758 768) no Hoare annotation was computed. [2020-10-12 13:15:49,363 INFO L268 CegarLoopResult]: For program point L164-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,363 INFO L268 CegarLoopResult]: For program point L98-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,363 INFO L268 CegarLoopResult]: For program point L32-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,364 INFO L268 CegarLoopResult]: For program point L825(lines 825 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,364 INFO L268 CegarLoopResult]: For program point L561(lines 561 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,364 INFO L268 CegarLoopResult]: For program point L429(lines 429 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,364 INFO L268 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-12 13:15:49,364 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-12 13:15:49,364 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-12 13:15:49,364 INFO L268 CegarLoopResult]: For program point L958(lines 958 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,364 INFO L268 CegarLoopResult]: For program point L694(lines 694 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,364 INFO L268 CegarLoopResult]: For program point L628(lines 628 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,364 INFO L268 CegarLoopResult]: For program point L893(lines 893 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,365 INFO L268 CegarLoopResult]: For program point L695(lines 695 705) no Hoare annotation was computed. [2020-10-12 13:15:49,365 INFO L268 CegarLoopResult]: For program point L695-2(lines 695 705) no Hoare annotation was computed. [2020-10-12 13:15:49,365 INFO L268 CegarLoopResult]: For program point L365(lines 365 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,365 INFO L268 CegarLoopResult]: For program point L299(lines 299 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,365 INFO L268 CegarLoopResult]: For program point L233(lines 233 1024) no Hoare annotation was computed. [2020-10-12 13:15:49,365 INFO L268 CegarLoopResult]: For program point L167-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,365 INFO L268 CegarLoopResult]: For program point L101-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,365 INFO L268 CegarLoopResult]: For program point L35-1(lines 22 1026) no Hoare annotation was computed. [2020-10-12 13:15:49,365 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 13:15:49,365 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 10) (= ~a8~0 15) (= ~a29~0 130) (= ~a4~0 1) (= ~a3~0 1) (= ~a23~0 312)) [2020-10-12 13:15:49,366 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 13:15:49,366 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 13:15:49,366 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 1028 1044) the Hoare annotation is: (or (not (= |old(~a4~0)| 1)) (not (= 312 |old(~a23~0)|)) (not (= 130 |old(~a29~0)|)) (not (= ~a8~0 15)) (and (= ~a25~0 |old(~a25~0)|) (= ~a29~0 130) (= ~a4~0 1) (= ~a23~0 312)) (not (= 10 |old(~a25~0)|)) (not (= ~a3~0 1))) [2020-10-12 13:15:49,366 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 1028 1044) no Hoare annotation was computed. [2020-10-12 13:15:49,366 INFO L264 CegarLoopResult]: At program point L1042(line 1042) the Hoare annotation is: (let ((.cse3 (= ~a25~0 10))) (let ((.cse0 (not .cse3)) (.cse1 (<= ~a29~0 599998)) (.cse2 (= ~a4~0 1)) (.cse4 (<= ~a29~0 599999)) (.cse5 (= ~a4~0 |old(~a4~0)|))) (or (not (= ~a8~0 15)) (and .cse0 .cse1) (and (= ~a25~0 11) .cse0 (<= ~a23~0 85) .cse2 (<= 0 (+ ~a23~0 4))) (<= ~a29~0 244) (and .cse1 (<= (+ ~a23~0 43) 0)) (not (= ~a3~0 1)) (and (= ~a25~0 13) (<= 180 ~a23~0) (<= ~a23~0 262) .cse2) (not (= |old(~a4~0)| 1)) (not (= 312 |old(~a23~0)|)) (and (= ~a25~0 9) (<= ~a23~0 137) .cse0 (<= 0 (+ ~a23~0 42)) .cse2) (not (= 130 |old(~a29~0)|)) (and (<= ~a29~0 275) .cse3 .cse2) (and .cse4 (<= ~a23~0 599999) (<= 308 ~a23~0) .cse5) (not (= 10 |old(~a25~0)|)) (and .cse3 (<= (+ ~a23~0 61) 0) .cse2) (and (<= 199 ~a23~0) .cse1 .cse2) (and .cse4 (<= ~a25~0 9) .cse5 (<= (+ ~a23~0 213) 0))))) [2020-10-12 13:15:49,366 INFO L268 CegarLoopResult]: For program point L1042-1(line 1042) no Hoare annotation was computed. [2020-10-12 13:15:49,366 INFO L268 CegarLoopResult]: For program point L1039(line 1039) no Hoare annotation was computed. [2020-10-12 13:15:49,366 INFO L264 CegarLoopResult]: At program point L1034-2(lines 1034 1043) the Hoare annotation is: (let ((.cse3 (= ~a25~0 10))) (let ((.cse0 (not .cse3)) (.cse1 (<= ~a29~0 599998)) (.cse2 (= ~a4~0 1)) (.cse4 (<= ~a29~0 599999)) (.cse5 (= ~a4~0 |old(~a4~0)|))) (or (not (= ~a8~0 15)) (and .cse0 .cse1) (and (= ~a25~0 11) .cse0 (<= ~a23~0 85) .cse2 (<= 0 (+ ~a23~0 4))) (<= ~a29~0 244) (and .cse1 (<= (+ ~a23~0 43) 0)) (not (= ~a3~0 1)) (and (= ~a25~0 13) (<= 180 ~a23~0) (<= ~a23~0 262) .cse2) (not (= |old(~a4~0)| 1)) (not (= 312 |old(~a23~0)|)) (and (= ~a25~0 9) (<= ~a23~0 137) .cse0 (<= 0 (+ ~a23~0 42)) .cse2) (not (= 130 |old(~a29~0)|)) (and (<= ~a29~0 275) .cse3 .cse2) (and .cse4 (<= ~a23~0 599999) (<= 308 ~a23~0) .cse5) (not (= 10 |old(~a25~0)|)) (and .cse3 (<= (+ ~a23~0 61) 0) .cse2) (and (<= 199 ~a23~0) .cse1 .cse2) (and .cse4 (<= ~a25~0 9) .cse5 (<= (+ ~a23~0 213) 0))))) [2020-10-12 13:15:49,366 INFO L268 CegarLoopResult]: For program point L1034-3(lines 1028 1044) no Hoare annotation was computed. [2020-10-12 13:15:49,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 01:15:49 BoogieIcfgContainer [2020-10-12 13:15:49,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 13:15:49,408 INFO L168 Benchmark]: Toolchain (without parser) took 207012.40 ms. Allocated memory was 137.4 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 97.6 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-12 13:15:49,409 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 13:15:49,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1040.17 ms. Allocated memory was 137.4 MB in the beginning and 207.1 MB in the end (delta: 69.7 MB). Free memory was 97.4 MB in the beginning and 161.7 MB in the end (delta: -64.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. [2020-10-12 13:15:49,410 INFO L168 Benchmark]: Boogie Preprocessor took 150.15 ms. Allocated memory is still 207.1 MB. Free memory was 161.7 MB in the beginning and 154.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2020-10-12 13:15:49,415 INFO L168 Benchmark]: RCFGBuilder took 1805.64 ms. Allocated memory was 207.1 MB in the beginning and 235.9 MB in the end (delta: 28.8 MB). Free memory was 153.3 MB in the beginning and 99.8 MB in the end (delta: 53.4 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-10-12 13:15:49,416 INFO L168 Benchmark]: TraceAbstraction took 204010.42 ms. Allocated memory was 235.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 99.8 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2020-10-12 13:15:49,419 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 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1040.17 ms. Allocated memory was 137.4 MB in the beginning and 207.1 MB in the end (delta: 69.7 MB). Free memory was 97.4 MB in the beginning and 161.7 MB in the end (delta: -64.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.15 ms. Allocated memory is still 207.1 MB. Free memory was 161.7 MB in the beginning and 154.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1805.64 ms. Allocated memory was 207.1 MB in the beginning and 235.9 MB in the end (delta: 28.8 MB). Free memory was 153.3 MB in the beginning and 99.8 MB in the end (delta: 53.4 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204010.42 ms. Allocated memory was 235.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 99.8 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 180]: 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: 1034]: Loop Invariant Derived loop invariant: (((((((((((((((!(a8 == 15) || (!(a25 == 10) && a29 <= 599998)) || ((((a25 == 11 && !(a25 == 10)) && a23 <= 85) && a4 == 1) && 0 <= a23 + 4)) || a29 <= 244) || (a29 <= 599998 && a23 + 43 <= 0)) || !(a3 == 1)) || (((a25 == 13 && 180 <= a23) && a23 <= 262) && a4 == 1)) || !(\old(a4) == 1)) || !(312 == \old(a23))) || ((((a25 == 9 && a23 <= 137) && !(a25 == 10)) && 0 <= a23 + 42) && a4 == 1)) || !(130 == \old(a29))) || ((a29 <= 275 && a25 == 10) && a4 == 1)) || (((a29 <= 599999 && a23 <= 599999) && 308 <= a23) && a4 == \old(a4))) || !(10 == \old(a25))) || ((a25 == 10 && a23 + 61 <= 0) && a4 == 1)) || ((199 <= a23 && a29 <= 599998) && a4 == 1)) || (((a29 <= 599999 && a25 <= 9) && a4 == \old(a4)) && a23 + 213 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 292 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 178.6s, OverallIterations: 25, TraceHistogramMax: 7, AutomataDifference: 83.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 25.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1226 SDtfs, 18499 SDslu, 2362 SDs, 0 SdLazy, 39247 SolverSat, 5990 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 51.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 547 GetRequests, 287 SyntacticMatches, 1 SemanticMatches, 259 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24546occurred in iteration=22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.1s AutomataMinimizationTime, 25 MinimizatonAttempts, 7137 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 1019 PreInvPairs, 1411 NumberOfFragments, 796 HoareAnnotationTreeSize, 1019 FomulaSimplifications, 243855 FormulaSimplificationTreeSizeReduction, 7.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 188180 FormulaSimplificationTreeSizeReductionInter, 17.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 82.6s InterpolantComputationTime, 9476 NumberOfCodeBlocks, 9476 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 9451 ConstructedInterpolants, 0 QuantifiedInterpolants, 18116038 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 2 PerfectInterpolantSequences, 11433/13174 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...