/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/Problem01_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:09:53,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:09:53,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:09:53,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:09:53,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:09:53,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:09:53,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:09:53,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:09:53,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:09:53,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:09:53,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:09:53,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:09:53,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:09:53,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:09:53,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:09:53,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:09:53,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:09:53,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:09:53,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:09:53,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:09:53,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:09:53,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:09:53,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:09:53,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:09:53,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:09:53,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:09:53,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:09:53,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:09:53,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:09:53,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:09:53,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:09:53,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:09:53,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:09:53,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:09:53,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:09:53,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:09:53,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:09:53,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:09:53,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:09:53,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:09:53,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:09:53,125 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 11:09:53,166 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:09:53,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:09:53,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:09:53,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:09:53,169 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:09:53,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:09:53,170 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:09:53,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:09:53,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:09:53,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:09:53,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:09:53,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:09:53,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:09:53,172 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:09:53,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:09:53,173 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:09:53,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:09:53,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:09:53,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:09:53,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:09:53,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:09:53,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:09:53,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:09:53,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:09:53,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:09:53,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:09:53,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:09:53,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:09:53,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:09:53,176 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 11:09:53,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:09:53,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:09:53,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:09:53,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:09:53,518 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:09:53,518 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label51.c [2020-10-12 11:09:53,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa5e286b9/d5647bdbb3904078ae1db7931c7fd63b/FLAG7d90b1fca [2020-10-12 11:09:54,119 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:09:54,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label51.c [2020-10-12 11:09:54,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa5e286b9/d5647bdbb3904078ae1db7931c7fd63b/FLAG7d90b1fca [2020-10-12 11:09:54,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa5e286b9/d5647bdbb3904078ae1db7931c7fd63b [2020-10-12 11:09:54,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:09:54,374 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:09:54,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:09:54,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:09:54,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:09:54,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:09:54" (1/1) ... [2020-10-12 11:09:54,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f7f464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:54, skipping insertion in model container [2020-10-12 11:09:54,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:09:54" (1/1) ... [2020-10-12 11:09:54,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:09:54,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:09:54,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:09:54,960 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:09:55,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:09:55,190 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:09:55,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:55 WrapperNode [2020-10-12 11:09:55,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:09:55,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:09:55,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:09:55,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:09:55,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:55" (1/1) ... [2020-10-12 11:09:55,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:55" (1/1) ... [2020-10-12 11:09:55,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:55" (1/1) ... [2020-10-12 11:09:55,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:55" (1/1) ... [2020-10-12 11:09:55,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:55" (1/1) ... [2020-10-12 11:09:55,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:55" (1/1) ... [2020-10-12 11:09:55,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:55" (1/1) ... [2020-10-12 11:09:55,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:09:55,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:09:55,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:09:55,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:09:55,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:55" (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 11:09:55,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:09:55,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:09:55,359 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:09:55,359 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:09:55,359 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:09:55,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:09:55,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:09:55,360 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:09:55,360 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:09:55,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:09:55,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:09:56,512 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:09:56,512 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:09:56,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:09:56 BoogieIcfgContainer [2020-10-12 11:09:56,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:09:56,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:09:56,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:09:56,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:09:56,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:09:54" (1/3) ... [2020-10-12 11:09:56,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4555c2d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:09:56, skipping insertion in model container [2020-10-12 11:09:56,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:55" (2/3) ... [2020-10-12 11:09:56,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4555c2d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:09:56, skipping insertion in model container [2020-10-12 11:09:56,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:09:56" (3/3) ... [2020-10-12 11:09:56,527 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label51.c [2020-10-12 11:09:56,538 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:09:56,546 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:09:56,561 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:09:56,587 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:09:56,587 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:09:56,587 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:09:56,587 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:09:56,588 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:09:56,588 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:09:56,588 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:09:56,588 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:09:56,614 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-12 11:09:56,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-12 11:09:56,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:56,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:56,628 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:56,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:56,634 INFO L82 PathProgramCache]: Analyzing trace with hash 588022894, now seen corresponding path program 1 times [2020-10-12 11:09:56,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:56,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766651903] [2020-10-12 11:09:56,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:56,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:57,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:58,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:58,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-12 11:09:58,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:09:58,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1698 [2020-10-12 11:09:58,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:58,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:09:58,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:09:58,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:09:58,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 11:09:59,343 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-12 11:09:59,515 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2020-10-12 11:09:59,663 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37 [2020-10-12 11:09:59,817 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2020-10-12 11:10:00,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:00,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:00,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:00,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:00,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:00,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:10:00,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:10:00,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:00,258 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 11:10:00,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766651903] [2020-10-12 11:10:00,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:10:00,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 11:10:00,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843620440] [2020-10-12 11:10:00,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:10:00,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:00,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:10:00,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:10:00,283 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-12 11:10:00,672 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 95 [2020-10-12 11:10:00,898 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 95 [2020-10-12 11:10:01,261 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2020-10-12 11:10:01,597 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 112 [2020-10-12 11:10:01,969 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-12 11:10:02,495 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2020-10-12 11:10:03,041 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 103 [2020-10-12 11:10:03,422 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2020-10-12 11:10:04,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:04,395 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-12 11:10:04,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:10:04,398 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 112 [2020-10-12 11:10:04,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:04,413 INFO L225 Difference]: With dead ends: 474 [2020-10-12 11:10:04,413 INFO L226 Difference]: Without dead ends: 205 [2020-10-12 11:10:04,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:10:04,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-12 11:10:04,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-12 11:10:04,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-12 11:10:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-12 11:10:04,492 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 112 [2020-10-12 11:10:04,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:04,493 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-12 11:10:04,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:10:04,493 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-12 11:10:04,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-12 11:10:04,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:04,498 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:10:04,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:10:04,499 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:04,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:04,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1061211465, now seen corresponding path program 1 times [2020-10-12 11:10:04,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:04,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565644567] [2020-10-12 11:10:04,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:04,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:04,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:05,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:05,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:05,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 11:10:05,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:10:05,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1429 [2020-10-12 11:10:05,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:10:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:10:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:10:05,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:06,530 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2020-10-12 11:10:06,681 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2020-10-12 11:10:06,819 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 42 [2020-10-12 11:10:06,948 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2020-10-12 11:10:07,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:07,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:07,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:07,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:07,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:07,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:10:07,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:07,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:07,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:07,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:07,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:07,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:10:07,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:07,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 11:10:07,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:07,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:07,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:07,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:10:07,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:10:07,507 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:10:07,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565644567] [2020-10-12 11:10:07,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:07,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:10:07,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440608897] [2020-10-12 11:10:07,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:10:07,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:07,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:10:07,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:10:07,513 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-12 11:10:07,916 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:10:08,442 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-12 11:10:09,169 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-12 11:10:09,526 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-12 11:10:09,973 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-12 11:10:10,233 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-12 11:10:10,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:10,912 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-12 11:10:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:10:10,914 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 120 [2020-10-12 11:10:10,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:10,918 INFO L225 Difference]: With dead ends: 433 [2020-10-12 11:10:10,918 INFO L226 Difference]: Without dead ends: 294 [2020-10-12 11:10:10,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-12 11:10:10,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-12 11:10:10,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-12 11:10:10,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-12 11:10:10,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-12 11:10:10,944 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 120 [2020-10-12 11:10:10,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:10,945 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-12 11:10:10,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:10:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-12 11:10:10,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-12 11:10:10,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:10,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:10:10,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:10:10,949 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:10,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:10,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1560322745, now seen corresponding path program 1 times [2020-10-12 11:10:10,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:10,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322118689] [2020-10-12 11:10:10,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:11,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:11,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:11,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:11,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:11,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-12 11:10:11,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:10:11,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-10-12 11:10:11,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:10:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:10:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-12 11:10:11,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:11,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:11,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:11,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:11,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:11,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:11,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:10:11,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:11,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:11,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:11,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:10:11,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:11,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:11,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:11,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:11,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:11,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:10:11,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 11:10:11,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:11,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:10:11,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:11,937 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 11:10:11,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322118689] [2020-10-12 11:10:11,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:11,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:10:11,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976334350] [2020-10-12 11:10:11,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:10:11,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:11,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:10:11,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:10:11,941 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 6 states. [2020-10-12 11:10:13,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:13,052 INFO L93 Difference]: Finished difference Result 633 states and 868 transitions. [2020-10-12 11:10:13,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:10:13,053 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2020-10-12 11:10:13,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:13,058 INFO L225 Difference]: With dead ends: 633 [2020-10-12 11:10:13,059 INFO L226 Difference]: Without dead ends: 423 [2020-10-12 11:10:13,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:10:13,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-10-12 11:10:13,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-10-12 11:10:13,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-10-12 11:10:13,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 539 transitions. [2020-10-12 11:10:13,093 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 539 transitions. Word has length 123 [2020-10-12 11:10:13,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:13,094 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 539 transitions. [2020-10-12 11:10:13,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:10:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 539 transitions. [2020-10-12 11:10:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-12 11:10:13,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:13,098 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:10:13,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:10:13,099 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:13,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:13,099 INFO L82 PathProgramCache]: Analyzing trace with hash 169643794, now seen corresponding path program 1 times [2020-10-12 11:10:13,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:13,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625045116] [2020-10-12 11:10:13,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:13,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:13,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:13,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:16,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:16,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:18,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:18,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 11:10:18,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:10:18,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 11:10:18,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:10:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 11:10:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:10:18,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:18,685 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-12 11:10:18,860 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-12 11:10:19,156 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 52 [2020-10-12 11:10:19,402 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 49 [2020-10-12 11:10:19,599 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 45 [2020-10-12 11:10:19,803 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 41 [2020-10-12 11:10:19,985 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2020-10-12 11:10:20,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:20,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:20,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:20,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:20,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:20,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:10:20,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:20,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 11:10:20,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:20,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:20,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:20,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:10:20,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:20,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:10:20,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:20,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:20,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:20,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:20,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:20,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:10:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:20,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:20,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:20,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:10:20,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:20,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:10:20,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:20,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:20,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:20,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 11:10:20,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:10:20,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625045116] [2020-10-12 11:10:20,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:20,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:10:20,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473633258] [2020-10-12 11:10:20,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:10:20,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:20,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:10:20,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:10:20,332 INFO L87 Difference]: Start difference. First operand 417 states and 539 transitions. Second operand 13 states. [2020-10-12 11:10:20,552 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-12 11:10:20,730 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 11:10:21,223 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2020-10-12 11:10:21,998 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 112 [2020-10-12 11:10:22,415 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 109 [2020-10-12 11:10:22,770 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 106 [2020-10-12 11:10:23,045 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2020-10-12 11:10:23,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:23,887 INFO L93 Difference]: Finished difference Result 861 states and 1169 transitions. [2020-10-12 11:10:23,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:10:23,888 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 139 [2020-10-12 11:10:23,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:23,892 INFO L225 Difference]: With dead ends: 861 [2020-10-12 11:10:23,892 INFO L226 Difference]: Without dead ends: 510 [2020-10-12 11:10:23,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:10:23,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-12 11:10:23,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 419. [2020-10-12 11:10:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-10-12 11:10:23,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 541 transitions. [2020-10-12 11:10:23,925 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 541 transitions. Word has length 139 [2020-10-12 11:10:23,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:23,925 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 541 transitions. [2020-10-12 11:10:23,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:10:23,926 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 541 transitions. [2020-10-12 11:10:23,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-12 11:10:23,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:23,934 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:10:23,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:10:23,935 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:23,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:23,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1219255614, now seen corresponding path program 1 times [2020-10-12 11:10:23,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:23,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120553872] [2020-10-12 11:10:23,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:23,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:24,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:24,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:25,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-12 11:10:25,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:10:25,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1786 [2020-10-12 11:10:25,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:25,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:10:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:10:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 11:10:25,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:25,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:25,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:25,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:25,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:25,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:10:25,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:25,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:25,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:25,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:10:25,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:25,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:25,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:25,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:10:25,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:25,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:10:25,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:10:25,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:25,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:10:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:25,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:25,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 11:10:25,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:25,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 11:10:25,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:10:25,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:25,991 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:10:25,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120553872] [2020-10-12 11:10:25,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:25,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:10:25,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384766333] [2020-10-12 11:10:25,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:10:25,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:25,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:10:25,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:10:25,994 INFO L87 Difference]: Start difference. First operand 419 states and 541 transitions. Second operand 8 states. [2020-10-12 11:10:27,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:27,708 INFO L93 Difference]: Finished difference Result 1082 states and 1457 transitions. [2020-10-12 11:10:27,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 11:10:27,709 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 140 [2020-10-12 11:10:27,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:27,718 INFO L225 Difference]: With dead ends: 1082 [2020-10-12 11:10:27,719 INFO L226 Difference]: Without dead ends: 729 [2020-10-12 11:10:27,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-12 11:10:27,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2020-10-12 11:10:27,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 705. [2020-10-12 11:10:27,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2020-10-12 11:10:27,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 869 transitions. [2020-10-12 11:10:27,763 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 869 transitions. Word has length 140 [2020-10-12 11:10:27,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:27,764 INFO L479 AbstractCegarLoop]: Abstraction has 705 states and 869 transitions. [2020-10-12 11:10:27,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:10:27,764 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 869 transitions. [2020-10-12 11:10:27,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-12 11:10:27,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:27,768 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:27,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:10:27,769 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:27,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:27,769 INFO L82 PathProgramCache]: Analyzing trace with hash -965094581, now seen corresponding path program 1 times [2020-10-12 11:10:27,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:27,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048645868] [2020-10-12 11:10:27,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:27,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:27,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:29,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:29,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 11:10:29,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:10:29,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1451 [2020-10-12 11:10:29,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:29,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:10:29,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-12 11:10:29,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:10:29,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:10:29,800 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-12 11:10:29,937 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-12 11:10:30,068 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2020-10-12 11:10:30,198 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 34 [2020-10-12 11:10:30,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:30,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:30,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:30,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:30,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:30,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:10:30,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:30,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:30,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:30,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:30,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:30,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:30,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:30,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:30,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:10:30,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:30,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 11:10:30,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:30,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:30,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:30,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 11:10:30,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:30,584 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:10:30,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048645868] [2020-10-12 11:10:30,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:30,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:10:30,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341524675] [2020-10-12 11:10:30,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:10:30,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:30,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:10:30,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:10:30,586 INFO L87 Difference]: Start difference. First operand 705 states and 869 transitions. Second operand 13 states. [2020-10-12 11:10:31,083 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-12 11:10:31,270 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-12 11:10:31,740 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-12 11:10:32,204 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-12 11:10:32,513 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-12 11:10:32,777 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-12 11:10:33,310 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2020-10-12 11:10:33,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:33,756 INFO L93 Difference]: Finished difference Result 1414 states and 1805 transitions. [2020-10-12 11:10:33,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 11:10:33,761 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 153 [2020-10-12 11:10:33,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:33,766 INFO L225 Difference]: With dead ends: 1414 [2020-10-12 11:10:33,766 INFO L226 Difference]: Without dead ends: 775 [2020-10-12 11:10:33,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:10:33,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2020-10-12 11:10:33,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 765. [2020-10-12 11:10:33,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-10-12 11:10:33,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 943 transitions. [2020-10-12 11:10:33,808 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 943 transitions. Word has length 153 [2020-10-12 11:10:33,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:33,809 INFO L479 AbstractCegarLoop]: Abstraction has 765 states and 943 transitions. [2020-10-12 11:10:33,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:10:33,809 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 943 transitions. [2020-10-12 11:10:33,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-12 11:10:33,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:33,814 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:33,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:10:33,815 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:33,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:33,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1416580816, now seen corresponding path program 1 times [2020-10-12 11:10:33,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:33,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646764603] [2020-10-12 11:10:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:33,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:33,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:34,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:35,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:35,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:37,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:37,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-12 11:10:37,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:10:37,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3942 [2020-10-12 11:10:37,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:10:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:10:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:10:37,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:38,241 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2020-10-12 11:10:38,434 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2020-10-12 11:10:38,698 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 44 [2020-10-12 11:10:38,941 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2020-10-12 11:10:39,140 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2020-10-12 11:10:39,367 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 41 [2020-10-12 11:10:39,592 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 40 [2020-10-12 11:10:39,756 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 36 [2020-10-12 11:10:39,902 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2020-10-12 11:10:40,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:40,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:40,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:40,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:40,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:40,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:10:40,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:40,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:40,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:40,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:40,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:40,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:40,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:40,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:40,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:10:40,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:40,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:10:40,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:10:40,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:40,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:10:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:40,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:40,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:40,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:10:40,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:40,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 11:10:40,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:10:40,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:10:40,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646764603] [2020-10-12 11:10:40,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:40,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:10:40,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122162159] [2020-10-12 11:10:40,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:10:40,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:40,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:10:40,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:10:40,573 INFO L87 Difference]: Start difference. First operand 765 states and 943 transitions. Second operand 20 states. [2020-10-12 11:10:41,036 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 11:10:41,476 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2020-10-12 11:10:41,882 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-10-12 11:10:42,249 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 112 [2020-10-12 11:10:42,672 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 109 [2020-10-12 11:10:43,008 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 114 [2020-10-12 11:10:43,409 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-12 11:10:43,710 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2020-10-12 11:10:44,129 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2020-10-12 11:10:44,401 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 105 [2020-10-12 11:10:44,780 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 106 [2020-10-12 11:10:45,063 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2020-10-12 11:10:45,335 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-12 11:10:45,857 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-10-12 11:10:46,095 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2020-10-12 11:10:47,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:47,427 INFO L93 Difference]: Finished difference Result 1648 states and 2091 transitions. [2020-10-12 11:10:47,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 11:10:47,428 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 170 [2020-10-12 11:10:47,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:47,432 INFO L225 Difference]: With dead ends: 1648 [2020-10-12 11:10:47,432 INFO L226 Difference]: Without dead ends: 949 [2020-10-12 11:10:47,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=557, Invalid=1335, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 11:10:47,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2020-10-12 11:10:47,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 913. [2020-10-12 11:10:47,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2020-10-12 11:10:47,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1115 transitions. [2020-10-12 11:10:47,466 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1115 transitions. Word has length 170 [2020-10-12 11:10:47,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:47,466 INFO L479 AbstractCegarLoop]: Abstraction has 913 states and 1115 transitions. [2020-10-12 11:10:47,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:10:47,466 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1115 transitions. [2020-10-12 11:10:47,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-12 11:10:47,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:47,471 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 11:10:47,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:10:47,471 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:47,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:47,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1710517665, now seen corresponding path program 1 times [2020-10-12 11:10:47,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:47,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357461934] [2020-10-12 11:10:47,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:47,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:47,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:47,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:48,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:48,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-12 11:10:48,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:10:48,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1442 [2020-10-12 11:10:48,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:10:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-12 11:10:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 11:10:48,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:49,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:49,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:49,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:49,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:49,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:49,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:10:49,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:49,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:49,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:49,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:49,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:10:49,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:49,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:49,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:49,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:10:49,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:49,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-12 11:10:49,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:49,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 11:10:49,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:10:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:10:49,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357461934] [2020-10-12 11:10:49,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:49,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:10:49,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715086197] [2020-10-12 11:10:49,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:10:49,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:49,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:10:49,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:10:49,837 INFO L87 Difference]: Start difference. First operand 913 states and 1115 transitions. Second operand 13 states. [2020-10-12 11:10:50,936 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 11:10:51,474 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-12 11:10:51,726 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-12 11:10:51,988 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-12 11:10:52,321 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:10:52,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:52,552 INFO L93 Difference]: Finished difference Result 1837 states and 2319 transitions. [2020-10-12 11:10:52,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:10:52,552 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 175 [2020-10-12 11:10:52,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:52,557 INFO L225 Difference]: With dead ends: 1837 [2020-10-12 11:10:52,557 INFO L226 Difference]: Without dead ends: 990 [2020-10-12 11:10:52,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:10:52,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2020-10-12 11:10:52,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 984. [2020-10-12 11:10:52,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 984 states. [2020-10-12 11:10:52,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1194 transitions. [2020-10-12 11:10:52,588 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1194 transitions. Word has length 175 [2020-10-12 11:10:52,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:52,589 INFO L479 AbstractCegarLoop]: Abstraction has 984 states and 1194 transitions. [2020-10-12 11:10:52,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:10:52,589 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1194 transitions. [2020-10-12 11:10:52,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-12 11:10:52,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:52,593 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, 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] [2020-10-12 11:10:52,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:10:52,594 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:52,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:52,594 INFO L82 PathProgramCache]: Analyzing trace with hash 431947758, now seen corresponding path program 1 times [2020-10-12 11:10:52,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:52,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199597349] [2020-10-12 11:10:52,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:52,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:52,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:52,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:52,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:54,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:54,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 11:10:54,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:10:54,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1854 [2020-10-12 11:10:54,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:10:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-12 11:10:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:10:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:54,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:54,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:54,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:54,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:54,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:54,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:10:54,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:54,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:54,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:54,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:54,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:54,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:10:54,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:10:54,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:54,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:54,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:10:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:54,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:54,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:54,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 11:10:54,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:54,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 11:10:54,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 11:10:54,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:55,095 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-12 11:10:55,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199597349] [2020-10-12 11:10:55,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:55,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:10:55,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934275002] [2020-10-12 11:10:55,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:10:55,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:55,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:10:55,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:10:55,098 INFO L87 Difference]: Start difference. First operand 984 states and 1194 transitions. Second operand 13 states. [2020-10-12 11:10:56,167 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 11:10:56,584 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-12 11:10:56,823 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-12 11:10:57,093 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-12 11:10:57,500 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:10:57,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:57,624 INFO L93 Difference]: Finished difference Result 1966 states and 2446 transitions. [2020-10-12 11:10:57,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:10:57,632 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 189 [2020-10-12 11:10:57,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:57,638 INFO L225 Difference]: With dead ends: 1966 [2020-10-12 11:10:57,638 INFO L226 Difference]: Without dead ends: 1048 [2020-10-12 11:10:57,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:10:57,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2020-10-12 11:10:57,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1020. [2020-10-12 11:10:57,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1020 states. [2020-10-12 11:10:57,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1237 transitions. [2020-10-12 11:10:57,674 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1237 transitions. Word has length 189 [2020-10-12 11:10:57,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:57,675 INFO L479 AbstractCegarLoop]: Abstraction has 1020 states and 1237 transitions. [2020-10-12 11:10:57,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:10:57,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1237 transitions. [2020-10-12 11:10:57,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-12 11:10:57,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:57,680 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-12 11:10:57,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:10:57,681 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:57,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:57,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1225493451, now seen corresponding path program 1 times [2020-10-12 11:10:57,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:57,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907528529] [2020-10-12 11:10:57,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:57,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:57,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:58,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:58,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:58,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-12 11:10:58,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:10:58,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 834 [2020-10-12 11:10:58,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:58,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:58,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 11:10:58,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 11:10:58,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:58,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:58,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:58,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:58,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:58,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:10:58,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:58,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:58,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:58,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:58,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:10:58,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:58,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:10:58,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:58,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:58,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:10:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:58,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:58,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:58,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:10:58,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:58,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:10:58,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:58,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:58,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 11:10:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:58,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:58,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:58,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 11:10:58,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:58,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:10:58,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:10:58,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:58,824 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 85 proven. 3 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-12 11:10:58,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907528529] [2020-10-12 11:10:58,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:58,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:10:58,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793182549] [2020-10-12 11:10:58,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:10:58,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:58,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:10:58,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:10:58,826 INFO L87 Difference]: Start difference. First operand 1020 states and 1237 transitions. Second operand 5 states. [2020-10-12 11:10:59,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:59,869 INFO L93 Difference]: Finished difference Result 2061 states and 2574 transitions. [2020-10-12 11:10:59,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:10:59,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2020-10-12 11:10:59,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:59,875 INFO L225 Difference]: With dead ends: 2061 [2020-10-12 11:10:59,875 INFO L226 Difference]: Without dead ends: 1026 [2020-10-12 11:10:59,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:10:59,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2020-10-12 11:10:59,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1020. [2020-10-12 11:10:59,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1020 states. [2020-10-12 11:10:59,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1235 transitions. [2020-10-12 11:10:59,909 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1235 transitions. Word has length 203 [2020-10-12 11:10:59,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:59,909 INFO L479 AbstractCegarLoop]: Abstraction has 1020 states and 1235 transitions. [2020-10-12 11:10:59,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:10:59,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1235 transitions. [2020-10-12 11:10:59,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-12 11:10:59,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:59,914 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-12 11:10:59,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:10:59,915 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:59,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:59,915 INFO L82 PathProgramCache]: Analyzing trace with hash 597492191, now seen corresponding path program 1 times [2020-10-12 11:10:59,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:59,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995213452] [2020-10-12 11:10:59,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:59,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:00,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:00,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:02,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:02,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:02,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:03,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:04,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:04,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-12 11:11:04,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:11:04,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 11:11:04,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:04,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:11:04,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 11:11:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 11:11:04,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:05,550 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 43 [2020-10-12 11:11:05,730 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 46 [2020-10-12 11:11:05,920 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 47 [2020-10-12 11:11:06,121 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 47 [2020-10-12 11:11:06,322 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 45 [2020-10-12 11:11:06,499 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 41 [2020-10-12 11:11:06,685 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2020-10-12 11:11:06,859 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 39 [2020-10-12 11:11:07,022 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 39 [2020-10-12 11:11:07,188 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 37 [2020-10-12 11:11:07,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:07,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:07,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:07,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:07,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:07,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:11:07,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:07,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:07,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:07,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:07,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:07,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:07,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:07,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:07,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:11:07,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:07,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:11:07,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:07,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:07,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:07,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:07,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:07,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:11:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:07,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:07,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:07,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:11:07,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:07,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 11:11:07,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:07,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:07,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:07,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:11:07,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:07,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 11:11:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:07,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:07,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:07,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:07,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:11:07,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:07,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 11:11:07,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:11:07,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 97 proven. 11 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-12 11:11:07,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995213452] [2020-10-12 11:11:07,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:07,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:11:07,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318423089] [2020-10-12 11:11:07,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:11:07,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:07,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:11:07,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:11:07,768 INFO L87 Difference]: Start difference. First operand 1020 states and 1235 transitions. Second operand 20 states. [2020-10-12 11:11:08,952 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2020-10-12 11:11:09,283 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-10-12 11:11:09,720 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 99 [2020-10-12 11:11:10,029 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 99 [2020-10-12 11:11:10,388 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-10-12 11:11:10,728 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-12 11:11:11,021 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:11:11,361 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:11:11,627 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-10-12 11:11:12,063 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:11:12,325 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-12 11:11:12,561 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2020-10-12 11:11:12,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:12,832 INFO L93 Difference]: Finished difference Result 2112 states and 2608 transitions. [2020-10-12 11:11:12,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 11:11:12,838 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 205 [2020-10-12 11:11:12,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:12,842 INFO L225 Difference]: With dead ends: 2112 [2020-10-12 11:11:12,842 INFO L226 Difference]: Without dead ends: 1152 [2020-10-12 11:11:12,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=397, Invalid=863, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 11:11:12,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-10-12 11:11:12,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1144. [2020-10-12 11:11:12,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1144 states. [2020-10-12 11:11:12,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1377 transitions. [2020-10-12 11:11:12,878 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1377 transitions. Word has length 205 [2020-10-12 11:11:12,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:12,879 INFO L479 AbstractCegarLoop]: Abstraction has 1144 states and 1377 transitions. [2020-10-12 11:11:12,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:11:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1377 transitions. [2020-10-12 11:11:12,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-12 11:11:12,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:12,884 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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 11:11:12,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:11:12,885 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:12,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:12,885 INFO L82 PathProgramCache]: Analyzing trace with hash -820573622, now seen corresponding path program 1 times [2020-10-12 11:11:12,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:12,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459612187] [2020-10-12 11:11:12,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:12,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:12,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:13,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:15,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:16,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:16,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:16,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:16,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:17,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:17,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-12 11:11:17,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:11:17,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 11:11:17,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:17,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:11:17,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-12 11:11:17,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 11:11:17,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:18,463 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-10-12 11:11:18,706 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2020-10-12 11:11:19,048 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 54 [2020-10-12 11:11:19,385 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 56 [2020-10-12 11:11:19,726 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 56 [2020-10-12 11:11:20,069 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 54 [2020-10-12 11:11:20,409 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 53 [2020-10-12 11:11:20,749 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 52 [2020-10-12 11:11:21,031 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 49 [2020-10-12 11:11:21,338 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 48 [2020-10-12 11:11:21,666 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 44 [2020-10-12 11:11:21,966 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 42 [2020-10-12 11:11:22,209 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 36 [2020-10-12 11:11:22,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:22,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:22,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:22,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:22,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:22,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:11:22,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:22,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:22,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:22,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:22,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:22,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:22,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:22,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:22,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:11:22,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:22,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 11:11:22,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:22,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:22,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:22,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:22,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:22,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:11:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:22,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:22,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:22,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:11:22,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:22,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:11:22,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:22,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:22,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:22,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:22,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:22,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:11:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:22,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:22,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:22,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 11:11:22,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:22,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 11:11:22,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:11:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:22,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 11:11:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:22,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:22,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:22,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:22,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:11:22,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:22,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 11:11:22,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:22,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:22,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:22,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:11:22,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:22,709 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 107 proven. 12 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-12 11:11:22,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459612187] [2020-10-12 11:11:22,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:22,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:11:22,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984030927] [2020-10-12 11:11:22,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:11:22,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:22,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:11:22,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:11:22,711 INFO L87 Difference]: Start difference. First operand 1144 states and 1377 transitions. Second operand 20 states. [2020-10-12 11:11:23,189 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 11:11:23,370 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 11:11:23,824 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2020-10-12 11:11:24,197 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-10-12 11:11:24,647 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-10-12 11:11:25,014 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2020-10-12 11:11:25,377 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-10-12 11:11:25,741 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-12 11:11:26,069 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-12 11:11:26,535 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-10-12 11:11:26,848 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 11:11:27,307 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-10-12 11:11:27,609 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-10-12 11:11:27,880 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 102 [2020-10-12 11:11:28,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:28,103 INFO L93 Difference]: Finished difference Result 2294 states and 2783 transitions. [2020-10-12 11:11:28,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 11:11:28,104 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 209 [2020-10-12 11:11:28,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:28,109 INFO L225 Difference]: With dead ends: 2294 [2020-10-12 11:11:28,109 INFO L226 Difference]: Without dead ends: 1210 [2020-10-12 11:11:28,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=402, Invalid=788, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 11:11:28,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2020-10-12 11:11:28,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1144. [2020-10-12 11:11:28,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1144 states. [2020-10-12 11:11:28,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1377 transitions. [2020-10-12 11:11:28,145 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1377 transitions. Word has length 209 [2020-10-12 11:11:28,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:28,146 INFO L479 AbstractCegarLoop]: Abstraction has 1144 states and 1377 transitions. [2020-10-12 11:11:28,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:11:28,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1377 transitions. [2020-10-12 11:11:28,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-12 11:11:28,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:28,151 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:11:28,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:11:28,151 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:28,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:28,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1507643055, now seen corresponding path program 1 times [2020-10-12 11:11:28,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:28,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192183492] [2020-10-12 11:11:28,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:28,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:28,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:28,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:28,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:28,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:30,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:30,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-12 11:11:30,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:11:30,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2750 [2020-10-12 11:11:30,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:30,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:11:30,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-12 11:11:30,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:11:30,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:31,448 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-12 11:11:31,734 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-12 11:11:32,086 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 49 [2020-10-12 11:11:32,334 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 45 [2020-10-12 11:11:32,549 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 42 [2020-10-12 11:11:32,744 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 39 [2020-10-12 11:11:32,933 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-10-12 11:11:32,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:32,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:32,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:32,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:32,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:32,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:11:32,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:32,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:32,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:32,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:32,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:33,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:33,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:33,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:33,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:11:33,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:33,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:11:33,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:33,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:33,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:33,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:33,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:33,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:11:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:33,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:33,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:33,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:11:33,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:11:33,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:33,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:33,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:33,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 11:11:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:33,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:33,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:33,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 11:11:33,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:33,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:11:33,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:33,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:33,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:33,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 11:11:33,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:33,240 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-12 11:11:33,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192183492] [2020-10-12 11:11:33,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:33,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:11:33,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346840384] [2020-10-12 11:11:33,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:11:33,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:33,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:11:33,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:11:33,242 INFO L87 Difference]: Start difference. First operand 1144 states and 1377 transitions. Second operand 13 states. [2020-10-12 11:11:33,638 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-12 11:11:33,828 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 11:11:34,080 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-12 11:11:34,393 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2020-10-12 11:11:34,864 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 112 [2020-10-12 11:11:35,199 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-12 11:11:35,535 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2020-10-12 11:11:35,981 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2020-10-12 11:11:36,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:36,533 INFO L93 Difference]: Finished difference Result 2308 states and 2840 transitions. [2020-10-12 11:11:36,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 11:11:36,535 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 214 [2020-10-12 11:11:36,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:36,541 INFO L225 Difference]: With dead ends: 2308 [2020-10-12 11:11:36,541 INFO L226 Difference]: Without dead ends: 1230 [2020-10-12 11:11:36,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:11:36,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2020-10-12 11:11:36,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1146. [2020-10-12 11:11:36,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1146 states. [2020-10-12 11:11:36,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1380 transitions. [2020-10-12 11:11:36,583 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1380 transitions. Word has length 214 [2020-10-12 11:11:36,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:36,584 INFO L479 AbstractCegarLoop]: Abstraction has 1146 states and 1380 transitions. [2020-10-12 11:11:36,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:11:36,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1380 transitions. [2020-10-12 11:11:36,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-12 11:11:36,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:36,589 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:11:36,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:11:36,590 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:36,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:36,590 INFO L82 PathProgramCache]: Analyzing trace with hash -2087028345, now seen corresponding path program 1 times [2020-10-12 11:11:36,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:36,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469763977] [2020-10-12 11:11:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:36,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:36,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:36,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:37,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:38,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:38,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-12 11:11:38,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:11:38,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1818 [2020-10-12 11:11:38,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:11:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:11:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 223 [2020-10-12 11:11:38,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:38,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:38,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:38,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:38,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:38,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:38,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:11:38,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:38,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:38,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:38,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:38,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:38,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:38,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:38,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:38,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:11:38,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:38,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:11:38,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:38,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:38,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:38,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:11:38,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:38,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:11:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:38,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:38,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:38,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:38,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:11:38,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:38,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 11:11:38,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:38,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:38,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:38,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:11:38,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:38,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:11:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:38,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:38,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:38,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:38,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:11:38,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:38,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 11:11:38,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:38,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:38,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:38,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:11:38,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:38,813 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 100 proven. 58 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-12 11:11:38,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469763977] [2020-10-12 11:11:38,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:38,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 11:11:38,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869879567] [2020-10-12 11:11:38,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:11:38,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:38,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:11:38,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:11:38,815 INFO L87 Difference]: Start difference. First operand 1146 states and 1380 transitions. Second operand 8 states. [2020-10-12 11:11:40,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:40,570 INFO L93 Difference]: Finished difference Result 2931 states and 3709 transitions. [2020-10-12 11:11:40,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:11:40,572 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 228 [2020-10-12 11:11:40,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:40,581 INFO L225 Difference]: With dead ends: 2931 [2020-10-12 11:11:40,582 INFO L226 Difference]: Without dead ends: 1851 [2020-10-12 11:11:40,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:11:40,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2020-10-12 11:11:40,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1773. [2020-10-12 11:11:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1773 states. [2020-10-12 11:11:40,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2170 transitions. [2020-10-12 11:11:40,634 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2170 transitions. Word has length 228 [2020-10-12 11:11:40,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:40,635 INFO L479 AbstractCegarLoop]: Abstraction has 1773 states and 2170 transitions. [2020-10-12 11:11:40,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:11:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2170 transitions. [2020-10-12 11:11:40,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-12 11:11:40,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:40,642 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:11:40,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:11:40,642 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:40,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:40,643 INFO L82 PathProgramCache]: Analyzing trace with hash 986693238, now seen corresponding path program 1 times [2020-10-12 11:11:40,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:40,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300322611] [2020-10-12 11:11:40,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:40,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:40,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:40,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:41,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:41,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:45,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-12 11:11:45,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:11:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 11:11:45,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:11:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:11:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-12 11:11:45,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:45,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:45,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:45,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:45,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:45,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:11:45,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:11:45,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:45,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:45,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:45,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:11:45,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:45,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:11:45,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 11:11:45,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:45,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:11:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:45,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:45,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:11:45,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:45,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 11:11:45,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:45,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:45,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:45,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:11:45,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:45,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:11:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:45,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:45,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:11:45,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:45,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 11:11:45,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:11:45,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:45,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 11:11:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:45,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:46,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:46,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-12 11:11:46,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:46,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 11:11:46,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 11:11:46,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:46,128 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 191 proven. 9 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-12 11:11:46,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300322611] [2020-10-12 11:11:46,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:46,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:11:46,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450839084] [2020-10-12 11:11:46,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:11:46,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:46,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:11:46,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:11:46,130 INFO L87 Difference]: Start difference. First operand 1773 states and 2170 transitions. Second operand 8 states. [2020-10-12 11:11:47,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:47,556 INFO L93 Difference]: Finished difference Result 4981 states and 6259 transitions. [2020-10-12 11:11:47,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:11:47,557 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 251 [2020-10-12 11:11:47,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:47,570 INFO L225 Difference]: With dead ends: 4981 [2020-10-12 11:11:47,571 INFO L226 Difference]: Without dead ends: 3274 [2020-10-12 11:11:47,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:11:47,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2020-10-12 11:11:47,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3146. [2020-10-12 11:11:47,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3146 states. [2020-10-12 11:11:47,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 3851 transitions. [2020-10-12 11:11:47,660 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 3851 transitions. Word has length 251 [2020-10-12 11:11:47,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:47,661 INFO L479 AbstractCegarLoop]: Abstraction has 3146 states and 3851 transitions. [2020-10-12 11:11:47,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:11:47,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 3851 transitions. [2020-10-12 11:11:47,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-12 11:11:47,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:47,670 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:11:47,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 11:11:47,671 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:47,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:47,671 INFO L82 PathProgramCache]: Analyzing trace with hash -400841731, now seen corresponding path program 1 times [2020-10-12 11:11:47,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:47,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013509414] [2020-10-12 11:11:47,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:47,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:47,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:47,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:48,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:48,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:50,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:50,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:50,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:52,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:52,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-12 11:11:52,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:11:52,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 11:11:52,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:52,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:11:52,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:11:52,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 11:11:52,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:52,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:52,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:52,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:52,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:52,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:52,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:11:52,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:52,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:52,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:52,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:11:52,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:52,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:52,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:52,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:52,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:52,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:11:52,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:52,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:11:52,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:52,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:52,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:52,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:11:52,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:11:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:52,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:52,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:52,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:52,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:11:52,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:52,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:11:52,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 11:11:52,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:52,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 11:11:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:52,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:52,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:52,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:52,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:11:52,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:52,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 11:11:52,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:52,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:52,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:52,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:11:52,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:52,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 11:11:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:52,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:52,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:52,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:52,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:11:52,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:52,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 11:11:52,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:52,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:52,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:11:52,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:53,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 11:11:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:53,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:53,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:53,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-12 11:11:53,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:53,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 11:11:53,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:53,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:53,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:53,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 11:11:53,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:53,207 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 172 proven. 71 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-10-12 11:11:53,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013509414] [2020-10-12 11:11:53,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:53,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 11:11:53,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609378577] [2020-10-12 11:11:53,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 11:11:53,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:53,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 11:11:53,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 11:11:53,209 INFO L87 Difference]: Start difference. First operand 3146 states and 3851 transitions. Second operand 9 states. [2020-10-12 11:11:54,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:54,504 INFO L93 Difference]: Finished difference Result 6636 states and 8469 transitions. [2020-10-12 11:11:54,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:11:54,504 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 262 [2020-10-12 11:11:54,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:54,521 INFO L225 Difference]: With dead ends: 6636 [2020-10-12 11:11:54,521 INFO L226 Difference]: Without dead ends: 3556 [2020-10-12 11:11:54,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:11:54,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3556 states. [2020-10-12 11:11:54,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3556 to 3422. [2020-10-12 11:11:54,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3422 states. [2020-10-12 11:11:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 4238 transitions. [2020-10-12 11:11:54,634 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 4238 transitions. Word has length 262 [2020-10-12 11:11:54,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:54,634 INFO L479 AbstractCegarLoop]: Abstraction has 3422 states and 4238 transitions. [2020-10-12 11:11:54,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 11:11:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 4238 transitions. [2020-10-12 11:11:54,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-12 11:11:54,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:54,645 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:11:54,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 11:11:54,645 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:54,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:54,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1827304530, now seen corresponding path program 1 times [2020-10-12 11:11:54,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:54,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555045818] [2020-10-12 11:11:54,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:54,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:54,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:55,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:55,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:55,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-10-12 11:11:55,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:11:55,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 970 [2020-10-12 11:11:55,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-10-12 11:11:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 11:11:55,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:55,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:55,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:55,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:55,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:55,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:55,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:11:55,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:55,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:55,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:55,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:55,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:55,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:55,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:55,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:55,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:11:55,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:55,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:11:55,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:55,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:55,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:55,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:55,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:55,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:11:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:55,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:55,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:55,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:11:55,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:55,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:11:55,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:55,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:55,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:11:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:55,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:55,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:55,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:11:55,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:55,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:11:55,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:55,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:55,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:55,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:55,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:55,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 11:11:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:55,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:55,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:55,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:11:55,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:55,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:11:55,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 11:11:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:55,993 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 143 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-10-12 11:11:55,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [555045818] [2020-10-12 11:11:55,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:55,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:11:55,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630002432] [2020-10-12 11:11:55,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:11:55,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:55,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:11:55,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:11:55,995 INFO L87 Difference]: Start difference. First operand 3422 states and 4238 transitions. Second operand 5 states. [2020-10-12 11:11:57,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:57,040 INFO L93 Difference]: Finished difference Result 6740 states and 8367 transitions. [2020-10-12 11:11:57,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:11:57,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2020-10-12 11:11:57,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:57,053 INFO L225 Difference]: With dead ends: 6740 [2020-10-12 11:11:57,053 INFO L226 Difference]: Without dead ends: 3299 [2020-10-12 11:11:57,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:11:57,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2020-10-12 11:11:57,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 3283. [2020-10-12 11:11:57,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3283 states. [2020-10-12 11:11:57,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 4007 transitions. [2020-10-12 11:11:57,137 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 4007 transitions. Word has length 262 [2020-10-12 11:11:57,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:57,138 INFO L479 AbstractCegarLoop]: Abstraction has 3283 states and 4007 transitions. [2020-10-12 11:11:57,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:11:57,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 4007 transitions. [2020-10-12 11:11:57,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-12 11:11:57,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:57,148 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-12 11:11:57,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 11:11:57,149 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:57,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:57,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1583723061, now seen corresponding path program 1 times [2020-10-12 11:11:57,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:57,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719123311] [2020-10-12 11:11:57,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:57,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:57,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:58,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:58,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:01,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:01,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-12 11:12:01,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:12:01,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4120 [2020-10-12 11:12:01,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:01,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:12:01,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-10-12 11:12:01,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 11:12:01,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:01,909 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-12 11:12:02,106 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-10-12 11:12:02,347 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 54 [2020-10-12 11:12:02,582 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2020-10-12 11:12:02,817 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 47 [2020-10-12 11:12:03,038 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2020-10-12 11:12:03,273 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 38 [2020-10-12 11:12:03,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:03,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:03,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:03,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:03,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:03,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:12:03,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:03,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:03,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:03,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:03,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:03,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:03,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:03,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:03,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:12:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:03,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 11:12:03,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:03,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:03,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:12:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:03,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:03,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:03,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:12:03,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:03,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:12:03,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:03,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:03,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:12:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:03,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:03,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:03,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:12:03,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:03,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:12:03,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:03,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:03,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:03,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 11:12:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:03,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:03,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:03,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:12:03,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:03,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:12:03,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:03,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:03,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 11:12:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:03,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:03,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:03,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 11:12:03,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:03,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 11:12:03,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:03,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:03,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:03,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 11:12:03,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 152 proven. 5 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2020-10-12 11:12:03,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719123311] [2020-10-12 11:12:03,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:03,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:12:03,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948711559] [2020-10-12 11:12:03,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:12:03,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:03,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:12:03,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:12:03,725 INFO L87 Difference]: Start difference. First operand 3283 states and 4007 transitions. Second operand 13 states. [2020-10-12 11:12:04,771 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-12 11:12:04,954 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 11:12:05,331 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 117 [2020-10-12 11:12:05,805 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-12 11:12:06,150 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-12 11:12:06,591 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-12 11:12:07,035 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 103 [2020-10-12 11:12:07,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:07,070 INFO L93 Difference]: Finished difference Result 6579 states and 8113 transitions. [2020-10-12 11:12:07,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:12:07,075 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 272 [2020-10-12 11:12:07,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:07,087 INFO L225 Difference]: With dead ends: 6579 [2020-10-12 11:12:07,087 INFO L226 Difference]: Without dead ends: 3362 [2020-10-12 11:12:07,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:12:07,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2020-10-12 11:12:07,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3346. [2020-10-12 11:12:07,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3346 states. [2020-10-12 11:12:07,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 4079 transitions. [2020-10-12 11:12:07,180 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 4079 transitions. Word has length 272 [2020-10-12 11:12:07,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:07,180 INFO L479 AbstractCegarLoop]: Abstraction has 3346 states and 4079 transitions. [2020-10-12 11:12:07,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:12:07,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 4079 transitions. [2020-10-12 11:12:07,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-10-12 11:12:07,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:07,192 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:12:07,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 11:12:07,192 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:07,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:07,193 INFO L82 PathProgramCache]: Analyzing trace with hash -273244614, now seen corresponding path program 1 times [2020-10-12 11:12:07,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:07,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267834664] [2020-10-12 11:12:07,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:07,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:07,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:07,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:08,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:08,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-10-12 11:12:08,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:12:08,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 832 [2020-10-12 11:12:08,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:08,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:08,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-12 11:12:08,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 11:12:08,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:08,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:08,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:08,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:08,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:08,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:08,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:12:08,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:08,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:08,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:08,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:08,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:08,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:08,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:08,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:08,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:12:08,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:08,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:12:08,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:08,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:08,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:08,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:12:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:08,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:08,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:08,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:12:08,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:08,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:12:08,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:08,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:08,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:08,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:08,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:08,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:12:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:08,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:08,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:08,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:12:08,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:08,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:12:08,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:08,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:08,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:12:08,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 11:12:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:08,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:08,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:08,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 11:12:08,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:08,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 11:12:08,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 11:12:08,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 162 proven. 4 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2020-10-12 11:12:08,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267834664] [2020-10-12 11:12:08,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:08,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:12:08,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207056895] [2020-10-12 11:12:08,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:12:08,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:08,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:12:08,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:12:08,458 INFO L87 Difference]: Start difference. First operand 3346 states and 4079 transitions. Second operand 5 states. [2020-10-12 11:12:09,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:09,492 INFO L93 Difference]: Finished difference Result 6375 states and 7781 transitions. [2020-10-12 11:12:09,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:12:09,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-10-12 11:12:09,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:09,506 INFO L225 Difference]: With dead ends: 6375 [2020-10-12 11:12:09,507 INFO L226 Difference]: Without dead ends: 3007 [2020-10-12 11:12:09,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:12:09,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2020-10-12 11:12:09,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 2995. [2020-10-12 11:12:09,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2995 states. [2020-10-12 11:12:09,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 3591 transitions. [2020-10-12 11:12:09,574 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 3591 transitions. Word has length 281 [2020-10-12 11:12:09,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:09,574 INFO L479 AbstractCegarLoop]: Abstraction has 2995 states and 3591 transitions. [2020-10-12 11:12:09,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:12:09,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 3591 transitions. [2020-10-12 11:12:09,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-12 11:12:09,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:09,584 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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 11:12:09,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 11:12:09,585 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:09,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:09,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1015921318, now seen corresponding path program 1 times [2020-10-12 11:12:09,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:09,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394681929] [2020-10-12 11:12:09,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:09,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:09,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:11,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:11,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:12,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:14,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-12 11:12:14,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:12:14,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-12 11:12:14,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:12:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-12 11:12:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 11:12:14,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:15,224 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-12 11:12:15,455 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-10-12 11:12:15,698 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 52 [2020-10-12 11:12:15,927 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2020-10-12 11:12:16,149 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 45 [2020-10-12 11:12:16,358 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 41 [2020-10-12 11:12:16,538 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 37 [2020-10-12 11:12:16,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:16,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:16,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:16,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:16,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:16,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:12:16,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:16,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:16,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:16,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:16,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:16,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:16,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:12:16,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:16,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:12:16,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:16,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:16,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:12:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:16,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:16,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:16,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:12:16,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:16,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:12:16,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:16,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:16,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:16,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:16,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:12:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:16,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:16,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:16,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:12:16,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:16,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:12:16,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:16,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:16,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 11:12:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:16,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:16,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:16,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:12:16,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:16,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:12:16,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:16,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:16,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:16,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:16,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:16,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 11:12:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:16,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:16,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:16,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 11:12:16,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:16,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:12:16,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:16,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:16,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:16,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:16,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:16,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-12 11:12:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:16,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:16,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:16,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-12 11:12:16,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:16,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:12:16,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:16,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:16,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:16,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:12:16,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 194 proven. 6 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2020-10-12 11:12:16,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394681929] [2020-10-12 11:12:16,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:16,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:12:16,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807250708] [2020-10-12 11:12:16,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:12:16,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:16,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:12:16,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:12:16,952 INFO L87 Difference]: Start difference. First operand 2995 states and 3591 transitions. Second operand 13 states. [2020-10-12 11:12:18,362 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-12 11:12:18,509 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-12 11:12:18,690 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 11:12:19,138 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2020-10-12 11:12:19,402 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-12 11:12:19,740 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 113 [2020-10-12 11:12:20,130 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2020-10-12 11:12:20,461 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2020-10-12 11:12:20,834 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 102 [2020-10-12 11:12:20,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:20,891 INFO L93 Difference]: Finished difference Result 5853 states and 7019 transitions. [2020-10-12 11:12:20,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:12:20,891 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 315 [2020-10-12 11:12:20,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:20,892 INFO L225 Difference]: With dead ends: 5853 [2020-10-12 11:12:20,892 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 11:12:20,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:12:20,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 11:12:20,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 11:12:20,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 11:12:20,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 11:12:20,905 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 315 [2020-10-12 11:12:20,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:20,905 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 11:12:20,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:12:20,905 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 11:12:20,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 11:12:20,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 11:12:20,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 11:12:22,076 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 116 [2020-10-12 11:12:22,473 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 112 [2020-10-12 11:12:22,653 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 47 [2020-10-12 11:12:25,534 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 353 DAG size of output: 182 [2020-10-12 11:12:26,693 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 151 DAG size of output: 116 [2020-10-12 11:12:27,485 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 87 [2020-10-12 11:12:27,490 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:12:27,491 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-12 11:12:27,491 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:12:27,491 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-12 11:12:27,491 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-12 11:12:27,492 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,492 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,492 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,492 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,492 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,493 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,493 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-12 11:12:27,493 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-12 11:12:27,493 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-12 11:12:27,493 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-12 11:12:27,493 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-12 11:12:27,493 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-12 11:12:27,493 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-12 11:12:27,494 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-12 11:12:27,494 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-12 11:12:27,494 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-12 11:12:27,494 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,494 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,494 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,494 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,495 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,495 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,495 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-12 11:12:27,495 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-12 11:12:27,495 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-12 11:12:27,495 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-12 11:12:27,495 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-12 11:12:27,495 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-12 11:12:27,495 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-12 11:12:27,495 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 494) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,496 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,497 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,498 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,498 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,498 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-12 11:12:27,498 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-12 11:12:27,498 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-12 11:12:27,498 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-12 11:12:27,498 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-12 11:12:27,498 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-12 11:12:27,498 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-12 11:12:27,499 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-12 11:12:27,499 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-12 11:12:27,499 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-12 11:12:27,499 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-12 11:12:27,499 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-12 11:12:27,499 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-12 11:12:27,499 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,499 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,499 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,500 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,500 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,500 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-12 11:12:27,500 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-12 11:12:27,500 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-12 11:12:27,500 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-12 11:12:27,500 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-12 11:12:27,500 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-12 11:12:27,500 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-12 11:12:27,500 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-12 11:12:27,500 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-12 11:12:27,501 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,501 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,501 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,501 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,501 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,501 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,501 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-12 11:12:27,501 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,501 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-12 11:12:27,501 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-12 11:12:27,501 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-12 11:12:27,502 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-12 11:12:27,502 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-12 11:12:27,502 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-12 11:12:27,502 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-12 11:12:27,502 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-12 11:12:27,502 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-12 11:12:27,502 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-12 11:12:27,502 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-12 11:12:27,502 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-12 11:12:27,502 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-12 11:12:27,503 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,503 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,503 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,503 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,503 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,503 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-12 11:12:27,503 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-12 11:12:27,503 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-12 11:12:27,503 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-12 11:12:27,503 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-12 11:12:27,504 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-12 11:12:27,504 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-12 11:12:27,504 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-12 11:12:27,504 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,504 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,504 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,504 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,504 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,504 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-12 11:12:27,504 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-12 11:12:27,505 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-12 11:12:27,505 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-12 11:12:27,505 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-12 11:12:27,505 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-12 11:12:27,505 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-12 11:12:27,505 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-12 11:12:27,505 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-12 11:12:27,505 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-12 11:12:27,506 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse3 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a7~0 |old(~a7~0)|)) (.cse24 (= ~a21~0 |old(~a21~0)|)) (.cse5 (= ~a20~0 |old(~a20~0)|)) (.cse25 (= ~a16~0 |old(~a16~0)|)) (.cse32 (= ~a8~0 |old(~a8~0)|))) (let ((.cse7 (= 5 ~a16~0)) (.cse8 (not (= 5 |old(~a16~0)|))) (.cse0 (not (= 14 |old(~a8~0)|))) (.cse6 (= 14 ~a8~0)) (.cse4 (= ~a21~0 1)) (.cse12 (= ~a8~0 15)) (.cse16 (= ~a16~0 4)) (.cse13 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse14 (not (= 15 |old(~a8~0)|))) (.cse17 (not (= 4 |old(~a16~0)|))) (.cse1 (= |old(~a7~0)| 1)) (.cse11 (not (= 0 |old(~a17~0)|))) (.cse19 (not (<= |old(~a16~0)| 6))) (.cse20 (not (< 5 |old(~a16~0)|))) (.cse15 (and .cse3 .cse2 .cse24 .cse5 .cse25 .cse32)) (.cse9 (not (= |old(~a21~0)| 1))) (.cse18 (not (< 0 |old(~a7~0)|))) (.cse21 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse23 (< 12 ~a8~0)) (.cse26 (<= ~a8~0 13)) (.cse22 (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|)))) (.cse27 (not (<= |old(~a8~0)| 13))) (.cse28 (not (<= |old(~a7~0)| 1))) (.cse29 (not (<= |old(~a17~0)| 0))) (.cse30 (not (< 12 |old(~a8~0)|))) (.cse10 (not (= ~a12~0 8))) (.cse31 (not (<= |old(~a20~0)| 1)))) (and (or .cse0 (not .cse1) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 .cse10 .cse11) (or (and .cse2 .cse3 .cse4 .cse5 .cse12 .cse7) .cse8 .cse13 .cse14 .cse9 .cse10 .cse1 .cse11) (or .cse15 (not (<= |old(~a20~0)| 0))) (or .cse0 (not (= |old(~a7~0)| |old(~a17~0)|)) (and .cse3 .cse5 .cse6 .cse16 (= ~a21~0 ~a20~0) (= ~a17~0 ~a7~0)) (not (= |old(~a20~0)| |old(~a21~0)|)) .cse9 .cse10 .cse17 .cse11) (or .cse18 .cse19 .cse20 .cse21 .cse22 (and .cse2 .cse3 .cse23 .cse24 .cse5 .cse25 .cse26) .cse27 .cse28 .cse29 .cse30 .cse10 .cse31) (or (not (= |old(~a17~0)| |old(~a20~0)|)) (and .cse2 (= ~a20~0 ~a17~0) .cse24 .cse5 .cse25 .cse32)) (or (not (= |old(~a8~0)| 13)) (and .cse3 .cse4 .cse5 (= ~a8~0 13) .cse16 (= ~a7~0 0)) .cse9 .cse10 (not (= |old(~a7~0)| 0)) .cse17 .cse11) (or (and .cse2 .cse3 .cse4 .cse5 .cse12 .cse16) .cse13 .cse14 .cse9 .cse10 .cse17 .cse1 .cse11) (or (and (not (<= |old(~a7~0)| 0)) (not (<= 2 |old(~a7~0)|))) .cse19 (not (<= |old(~a8~0)| 15)) .cse20 .cse21 (and .cse3 .cse2 (<= ~a16~0 6) .cse5 (< 5 ~a16~0) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0)) (not (<= 15 |old(~a8~0)|)) .cse9 .cse10) (or (= |old(~a20~0)| 1) .cse15 .cse9) (or .cse18 (not (<= 4 |old(~a16~0)|)) .cse21 (and .cse2 .cse3 .cse23 .cse24 .cse5 (<= ~a16~0 4) (<= 4 ~a16~0) .cse26) .cse22 .cse27 (not (<= |old(~a16~0)| 4)) .cse28 .cse29 .cse30 .cse10 .cse31)))) [2020-10-12 11:12:27,506 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-12 11:12:27,506 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,507 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,507 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,507 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,507 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-12 11:12:27,507 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,507 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,507 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-12 11:12:27,507 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-12 11:12:27,507 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-12 11:12:27,508 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-12 11:12:27,508 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-12 11:12:27,508 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-12 11:12:27,508 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-12 11:12:27,508 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-12 11:12:27,508 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-12 11:12:27,508 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-12 11:12:27,508 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-12 11:12:27,508 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-12 11:12:27,509 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-12 11:12:27,510 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-12 11:12:27,511 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-12 11:12:27,511 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-12 11:12:27,511 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-12 11:12:27,511 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-12 11:12:27,511 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-12 11:12:27,511 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-12 11:12:27,511 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-12 11:12:27,511 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:12:27,511 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (<= ~a16~0 5) (= ~a12~0 8) (<= ~a21~0 1) (<= ~a20~0 1) (<= 5 ~a16~0) (<= 1 ~a21~0) (<= ~a8~0 15) (= ~a7~0 0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-12 11:12:27,511 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 11:12:27,511 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:12:27,511 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (= |old(~a17~0)| 1)) (not (<= |old(~a8~0)| 15)) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (<= ~a8~0 15) (<= 15 ~a8~0) (= ~a7~0 0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-12 11:12:27,511 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:12:27,512 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse12 (= ~a7~0 1))) (let ((.cse1 (= 14 ~a8~0)) (.cse4 (<= 1 ~a7~0)) (.cse14 (<= ~a16~0 6)) (.cse5 (<= 13 ~a8~0)) (.cse15 (<= 6 ~a16~0)) (.cse6 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse7 (<= ~a17~0 0)) (.cse8 (<= ~a20~0 1)) (.cse9 (<= ~a7~0 1)) (.cse10 (or (< 1 ~a21~0) (<= ~a21~0 0))) (.cse11 (<= ~a8~0 13)) (.cse2 (= ~a16~0 4)) (.cse16 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1) (= 2 main_~input~0))) (.cse17 (= ~a8~0 15)) (.cse18 (not .cse12)) (.cse13 (= 5 ~a16~0)) (.cse3 (= ~a17~0 0)) (.cse0 (= ~a21~0 1))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 (= ~a17~0 ~a7~0) .cse3) (not (<= |old(~a8~0)| 15)) (= ~a20~0 ~a17~0) (and .cse4 .cse5 (<= ~a16~0 4) .cse6 .cse7 (<= 4 ~a16~0) .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse1 .cse13 .cse3) (and .cse14 .cse15 .cse6 (or (< 1 ~a7~0) (<= ~a7~0 0)) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0)) (and .cse4 .cse14 .cse5 .cse15 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (not (= |old(~a21~0)| 1)) (not (<= 1 |old(~a20~0)|)) (<= ~a20~0 0) (not (<= |old(~a20~0)| 1)) (and .cse0 (= ~a8~0 13) .cse2 (= ~a7~0 0) .cse3) (not (= |old(~a17~0)| 1)) (and .cse0 .cse16 .cse17 .cse2 .cse18 .cse3) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse16 .cse17 .cse18 .cse13 .cse3) (and .cse0 (not (= ~a20~0 1))) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8))))) [2020-10-12 11:12:27,512 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-12 11:12:27,512 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-12 11:12:27,512 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse13 (= ~a7~0 1))) (let ((.cse1 (= 14 ~a8~0)) (.cse5 (<= ~a16~0 6)) (.cse7 (<= 6 ~a16~0)) (.cse2 (= ~a16~0 4)) (.cse15 (= ~a8~0 15)) (.cse16 (not .cse13)) (.cse14 (= 5 ~a16~0)) (.cse3 (= ~a17~0 0)) (.cse0 (= ~a21~0 1)) (.cse4 (<= 1 ~a7~0)) (.cse6 (<= 13 ~a8~0)) (.cse8 (<= ~a17~0 0)) (.cse9 (<= ~a20~0 1)) (.cse10 (<= ~a7~0 1)) (.cse11 (or (< 1 ~a21~0) (<= ~a21~0 0))) (.cse12 (<= ~a8~0 13))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 (= ~a17~0 ~a7~0) .cse3) (not (<= |old(~a8~0)| 15)) (= ~a20~0 ~a17~0) (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse0 .cse13 .cse1 .cse14 .cse3) (and .cse5 .cse7 (or (< 1 ~a7~0) (<= ~a7~0 0)) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0)) (not (= |old(~a21~0)| 1)) (not (<= 1 |old(~a20~0)|)) (<= ~a20~0 0) (not (<= |old(~a20~0)| 1)) (and .cse0 .cse15 .cse2 .cse16 .cse3) (and .cse0 (= ~a8~0 13) .cse2 (= ~a7~0 0) .cse3) (not (= |old(~a17~0)| 1)) (and .cse0 .cse15 .cse16 .cse14 .cse3) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse0 (not (= ~a20~0 1))) (and .cse4 .cse6 (<= ~a16~0 4) .cse8 (<= 4 ~a16~0) .cse9 .cse10 .cse11 .cse12) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8))))) [2020-10-12 11:12:27,512 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:12:27,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:12:27 BoogieIcfgContainer [2020-10-12 11:12:27,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:12:27,543 INFO L168 Benchmark]: Toolchain (without parser) took 153169.24 ms. Allocated memory was 140.0 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 102.1 MB in the beginning and 311.3 MB in the end (delta: -209.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-12 11:12:27,543 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-12 11:12:27,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.74 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 171.1 MB in the end (delta: -69.2 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2020-10-12 11:12:27,545 INFO L168 Benchmark]: Boogie Preprocessor took 112.31 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 166.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-12 11:12:27,546 INFO L168 Benchmark]: RCFGBuilder took 1214.10 ms. Allocated memory was 205.0 MB in the beginning and 239.1 MB in the end (delta: 34.1 MB). Free memory was 166.2 MB in the beginning and 181.5 MB in the end (delta: -15.3 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-10-12 11:12:27,546 INFO L168 Benchmark]: TraceAbstraction took 151020.80 ms. Allocated memory was 239.1 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 180.0 MB in the beginning and 311.3 MB in the end (delta: -131.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-12 11:12:27,551 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 816.74 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 171.1 MB in the end (delta: -69.2 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.31 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 166.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1214.10 ms. Allocated memory was 205.0 MB in the beginning and 239.1 MB in the end (delta: 34.1 MB). Free memory was 166.2 MB in the beginning and 181.5 MB in the end (delta: -15.3 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 151020.80 ms. Allocated memory was 239.1 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 180.0 MB in the beginning and 311.3 MB in the end (delta: -131.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 494]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((!(5 <= \old(a16)) || ((((a21 == 1 && 14 == a8) && a16 == 4) && a17 == a7) && a17 == 0)) || !(\old(a8) <= 15)) || a20 == a17) || ((((((((1 <= a7 && a16 <= 6) && 13 <= a8) && 6 <= a16) && a17 <= 0) && a20 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13)) || ((((a21 == 1 && a7 == 1) && 14 == a8) && 5 == a16) && a17 == 0)) || ((((((a16 <= 6 && 6 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || !(\old(a21) == 1)) || !(1 <= \old(a20))) || a20 <= 0) || !(\old(a20) <= 1)) || ((((a21 == 1 && a8 == 15) && a16 == 4) && !(a7 == 1)) && a17 == 0)) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a7 == 0) && a17 == 0)) || !(\old(a17) == 1)) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || (a21 == 1 && !(a20 == 1))) || ((((((((1 <= a7 && 13 <= a8) && a16 <= 4) && a17 <= 0) && 4 <= a16) && a20 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13)) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 144.3s, OverallIterations: 20, TraceHistogramMax: 7, AutomataDifference: 58.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 537 SDtfs, 7380 SDslu, 973 SDs, 0 SdLazy, 19449 SolverSat, 1805 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 553 GetRequests, 187 SyntacticMatches, 17 SemanticMatches, 349 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1368 ImplicationChecksByTransitivity, 48.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3422occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 20 MinimizatonAttempts, 767 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 316 PreInvPairs, 387 NumberOfFragments, 1491 HoareAnnotationTreeSize, 316 FomulaSimplifications, 42709 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 13285 FormulaSimplificationTreeSizeReductionInter, 4.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 81.2s InterpolantComputationTime, 4023 NumberOfCodeBlocks, 4023 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 4003 ConstructedInterpolants, 0 QuantifiedInterpolants, 10830437 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 2899/3146 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...