/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/Problem16_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:50:17,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:50:17,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:50:17,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:50:17,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:50:17,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:50:17,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:50:17,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:50:17,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:50:17,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:50:17,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:50:17,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:50:17,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:50:17,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:50:17,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:50:17,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:50:17,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:50:17,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:50:17,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:50:17,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:50:17,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:50:17,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:50:17,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:50:17,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:50:17,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:50:17,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:50:17,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:50:17,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:50:17,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:50:17,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:50:17,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:50:17,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:50:17,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:50:17,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:50:17,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:50:17,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:50:17,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:50:17,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:50:17,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:50:17,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:50:17,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:50:17,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 03:50:17,285 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:50:17,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:50:17,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:50:17,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:50:17,287 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:50:17,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:50:17,287 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:50:17,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:50:17,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:50:17,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:50:17,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:50:17,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:50:17,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:50:17,289 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:50:17,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:50:17,289 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:50:17,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:50:17,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:50:17,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:50:17,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:50:17,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:50:17,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:50:17,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:50:17,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:50:17,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:50:17,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:50:17,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:50:17,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:50:17,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:50:17,292 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:50:17,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:50:17,636 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:50:17,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:50:17,641 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:50:17,642 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:50:17,643 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label45.c [2020-10-14 03:50:17,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a402a846/a9660d8a49b74063822d879a43e22b23/FLAGf6471714a [2020-10-14 03:50:18,354 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:50:18,354 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label45.c [2020-10-14 03:50:18,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a402a846/a9660d8a49b74063822d879a43e22b23/FLAGf6471714a [2020-10-14 03:50:18,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a402a846/a9660d8a49b74063822d879a43e22b23 [2020-10-14 03:50:18,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:50:18,577 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:50:18,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:50:18,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:50:18,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:50:18,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:50:18" (1/1) ... [2020-10-14 03:50:18,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6266eb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:18, skipping insertion in model container [2020-10-14 03:50:18,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:50:18" (1/1) ... [2020-10-14 03:50:18,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:50:18,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:50:19,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:50:19,619 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:50:19,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:50:19,996 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:50:19,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:19 WrapperNode [2020-10-14 03:50:19,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:50:19,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:50:19,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:50:19,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:50:20,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:19" (1/1) ... [2020-10-14 03:50:20,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:19" (1/1) ... [2020-10-14 03:50:20,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:19" (1/1) ... [2020-10-14 03:50:20,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:19" (1/1) ... [2020-10-14 03:50:20,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:19" (1/1) ... [2020-10-14 03:50:20,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:19" (1/1) ... [2020-10-14 03:50:20,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:19" (1/1) ... [2020-10-14 03:50:20,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:50:20,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:50:20,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:50:20,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:50:20,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:50:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:50:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:50:20,316 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:50:20,316 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:50:20,316 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:50:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:50:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:50:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:50:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:50:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:50:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:50:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:50:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:50:22,646 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:50:22,646 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:50:22,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:50:22 BoogieIcfgContainer [2020-10-14 03:50:22,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:50:22,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:50:22,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:50:22,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:50:22,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:50:18" (1/3) ... [2020-10-14 03:50:22,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a843ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:50:22, skipping insertion in model container [2020-10-14 03:50:22,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:19" (2/3) ... [2020-10-14 03:50:22,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a843ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:50:22, skipping insertion in model container [2020-10-14 03:50:22,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:50:22" (3/3) ... [2020-10-14 03:50:22,665 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label45.c [2020-10-14 03:50:22,677 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:50:22,686 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:50:22,704 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:50:22,731 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:50:22,731 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:50:22,732 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:50:22,732 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:50:22,732 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:50:22,732 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:50:22,732 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:50:22,732 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:50:22,765 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:50:22,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-14 03:50:22,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:22,781 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] [2020-10-14 03:50:22,782 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:22,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:22,788 INFO L82 PathProgramCache]: Analyzing trace with hash -157468318, now seen corresponding path program 1 times [2020-10-14 03:50:22,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:22,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581369696] [2020-10-14 03:50:22,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:23,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:23,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:23,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 03:50:23,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:23,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-14 03:50:23,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:23,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:50:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:50:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 03:50:23,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:50:23,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:23,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:23,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:23,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:23,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:50:23,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:23,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:50:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:50:23,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581369696] [2020-10-14 03:50:23,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:50:23,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 03:50:23,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142772044] [2020-10-14 03:50:23,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:50:23,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:23,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:50:23,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:50:23,648 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 5 states. [2020-10-14 03:50:29,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:29,256 INFO L93 Difference]: Finished difference Result 1515 states and 2849 transitions. [2020-10-14 03:50:29,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:50:29,259 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-14 03:50:29,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:29,297 INFO L225 Difference]: With dead ends: 1515 [2020-10-14 03:50:29,297 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 03:50:29,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:29,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 03:50:29,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1034. [2020-10-14 03:50:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-10-14 03:50:29,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1485 transitions. [2020-10-14 03:50:29,436 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1485 transitions. Word has length 59 [2020-10-14 03:50:29,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:29,437 INFO L479 AbstractCegarLoop]: Abstraction has 1034 states and 1485 transitions. [2020-10-14 03:50:29,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:50:29,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1485 transitions. [2020-10-14 03:50:29,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-14 03:50:29,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:29,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:29,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:50:29,445 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:29,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:29,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1320297042, now seen corresponding path program 1 times [2020-10-14 03:50:29,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:29,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448728592] [2020-10-14 03:50:29,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:29,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:29,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:30,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:30,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:50:30,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:50:30,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 942 [2020-10-14 03:50:30,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:30,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:50:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 03:50:30,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:30,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:30,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:30,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:30,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:30,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:30,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:50:30,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:30,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:30,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:30,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:30,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:30,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:30,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:30,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:30,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:30,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:50:30,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:30,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 03:50:30,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:30,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:30,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:30,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:30,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:50:30,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:30,691 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:50:30,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448728592] [2020-10-14 03:50:30,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:30,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:50:30,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106387667] [2020-10-14 03:50:30,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:50:30,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:30,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:50:30,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:50:30,696 INFO L87 Difference]: Start difference. First operand 1034 states and 1485 transitions. Second operand 5 states. [2020-10-14 03:50:34,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:34,491 INFO L93 Difference]: Finished difference Result 2408 states and 3593 transitions. [2020-10-14 03:50:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:50:34,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-10-14 03:50:34,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:34,501 INFO L225 Difference]: With dead ends: 2408 [2020-10-14 03:50:34,501 INFO L226 Difference]: Without dead ends: 1380 [2020-10-14 03:50:34,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:50:34,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-10-14 03:50:34,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1376. [2020-10-14 03:50:34,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-10-14 03:50:34,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1900 transitions. [2020-10-14 03:50:34,548 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1900 transitions. Word has length 135 [2020-10-14 03:50:34,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:34,549 INFO L479 AbstractCegarLoop]: Abstraction has 1376 states and 1900 transitions. [2020-10-14 03:50:34,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:50:34,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1900 transitions. [2020-10-14 03:50:34,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-14 03:50:34,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:34,558 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:50:34,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:50:34,559 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:34,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:34,559 INFO L82 PathProgramCache]: Analyzing trace with hash 365406558, now seen corresponding path program 1 times [2020-10-14 03:50:34,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:34,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688292069] [2020-10-14 03:50:34,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:34,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:34,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:35,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:35,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:37,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:39,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:39,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-14 03:50:39,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:50:39,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 03:50:39,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:39,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:50:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:50:39,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:39,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:39,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:39,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:39,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:39,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:39,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:50:39,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:39,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:39,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:39,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:39,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:50:39,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:39,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:39,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:39,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:50:39,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:39,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:50:39,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:39,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:39,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:39,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:50:39,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:39,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 03:50:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:39,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:40,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:40,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:50:40,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:40,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-14 03:50:40,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:40,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:50:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:40,341 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:50:40,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688292069] [2020-10-14 03:50:40,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:40,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:50:40,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80157532] [2020-10-14 03:50:40,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:50:40,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:40,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:50:40,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:50:40,344 INFO L87 Difference]: Start difference. First operand 1376 states and 1900 transitions. Second operand 8 states. [2020-10-14 03:50:44,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:44,718 INFO L93 Difference]: Finished difference Result 3460 states and 4882 transitions. [2020-10-14 03:50:44,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:50:44,719 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 245 [2020-10-14 03:50:44,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:44,731 INFO L225 Difference]: With dead ends: 3460 [2020-10-14 03:50:44,731 INFO L226 Difference]: Without dead ends: 1739 [2020-10-14 03:50:44,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:50:44,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2020-10-14 03:50:44,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1725. [2020-10-14 03:50:44,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1725 states. [2020-10-14 03:50:44,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 1943 transitions. [2020-10-14 03:50:44,799 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 1943 transitions. Word has length 245 [2020-10-14 03:50:44,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:44,801 INFO L479 AbstractCegarLoop]: Abstraction has 1725 states and 1943 transitions. [2020-10-14 03:50:44,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:50:44,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 1943 transitions. [2020-10-14 03:50:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-10-14 03:50:44,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:44,813 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:44,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:50:44,820 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:44,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:44,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1868344778, now seen corresponding path program 1 times [2020-10-14 03:50:44,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:44,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346351694] [2020-10-14 03:50:44,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:44,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:45,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:45,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:48,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:49,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:49,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 427 [2020-10-14 03:50:49,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:50:49,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 03:50:49,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:49,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 03:50:49,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:50:49,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:50,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:50,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:50,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:50,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:50,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:50,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:50:50,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:50,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:50,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:50,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:50,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:50,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:50,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:50,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:50,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:50:50,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:50,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:50:50,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:50,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:50,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:50,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:50:50,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:50:50,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:50:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:50,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:50,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:50,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:50:50,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:50,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 03:50:50,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:50,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:50,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:50,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:50:50,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:50,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-14 03:50:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:50,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:50,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:50,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:50:50,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:50,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:50:50,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:50,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:50,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:50,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:50:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:50,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 272 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:50:50,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346351694] [2020-10-14 03:50:50,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:50,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:50,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616511369] [2020-10-14 03:50:50,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:50,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:50,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:50,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:50,782 INFO L87 Difference]: Start difference. First operand 1725 states and 1943 transitions. Second operand 7 states. [2020-10-14 03:50:54,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:54,433 INFO L93 Difference]: Finished difference Result 5266 states and 6240 transitions. [2020-10-14 03:50:54,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:50:54,434 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 413 [2020-10-14 03:50:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:54,458 INFO L225 Difference]: With dead ends: 5266 [2020-10-14 03:50:54,458 INFO L226 Difference]: Without dead ends: 3547 [2020-10-14 03:50:54,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:50:54,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3547 states. [2020-10-14 03:50:54,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3547 to 3104. [2020-10-14 03:50:54,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3104 states. [2020-10-14 03:50:54,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 3396 transitions. [2020-10-14 03:50:54,587 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 3396 transitions. Word has length 413 [2020-10-14 03:50:54,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:54,588 INFO L479 AbstractCegarLoop]: Abstraction has 3104 states and 3396 transitions. [2020-10-14 03:50:54,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:54,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 3396 transitions. [2020-10-14 03:50:54,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2020-10-14 03:50:54,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:54,604 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:54,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:50:54,605 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:54,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:54,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1313685841, now seen corresponding path program 1 times [2020-10-14 03:50:54,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:54,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972059882] [2020-10-14 03:50:54,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:54,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:54,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:55,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:58,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:59,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:59,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 490 [2020-10-14 03:50:59,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:50:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 03:50:59,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:59,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:50:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:50:59,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:59,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:59,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:59,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:59,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:59,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:59,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:50:59,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:59,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:59,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:59,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:59,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:59,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:59,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:50:59,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:59,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 03:50:59,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:59,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:59,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:59,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 03:50:59,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:59,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 03:51:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:00,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:00,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:00,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:51:00,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:00,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 03:51:00,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:00,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:51:00,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:00,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 03:51:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:00,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:00,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:00,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:00,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:00,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:51:00,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:00,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:51:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:00,624 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 301 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:51:00,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972059882] [2020-10-14 03:51:00,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:00,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:00,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706828224] [2020-10-14 03:51:00,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:00,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:00,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:00,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:00,627 INFO L87 Difference]: Start difference. First operand 3104 states and 3396 transitions. Second operand 7 states. [2020-10-14 03:51:05,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:05,049 INFO L93 Difference]: Finished difference Result 8676 states and 9869 transitions. [2020-10-14 03:51:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:51:05,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 476 [2020-10-14 03:51:05,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:05,079 INFO L225 Difference]: With dead ends: 8676 [2020-10-14 03:51:05,079 INFO L226 Difference]: Without dead ends: 5578 [2020-10-14 03:51:05,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:51:05,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5578 states. [2020-10-14 03:51:05,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5578 to 5219. [2020-10-14 03:51:05,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5219 states. [2020-10-14 03:51:05,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 5752 transitions. [2020-10-14 03:51:05,232 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 5752 transitions. Word has length 476 [2020-10-14 03:51:05,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:05,233 INFO L479 AbstractCegarLoop]: Abstraction has 5219 states and 5752 transitions. [2020-10-14 03:51:05,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:05,233 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 5752 transitions. [2020-10-14 03:51:05,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2020-10-14 03:51:05,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:05,250 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:05,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:51:05,250 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:05,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:05,251 INFO L82 PathProgramCache]: Analyzing trace with hash -596014122, now seen corresponding path program 1 times [2020-10-14 03:51:05,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:05,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507469446] [2020-10-14 03:51:05,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:05,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:08,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:10,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:10,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 507 [2020-10-14 03:51:10,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:51:10,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5542 [2020-10-14 03:51:10,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:10,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:10,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:10,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 336 [2020-10-14 03:51:10,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:51:10,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:10,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:10,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:10,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:10,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:10,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:10,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:10,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:10,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:10,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:11,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:11,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:11,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:11,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:51:11,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:11,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:51:11,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:11,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:11,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:11,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:51:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:11,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:11,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:11,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:51:11,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 03:51:11,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:11,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:11,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:11,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:11,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:51:11,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:11,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2020-10-14 03:51:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:11,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:11,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:11,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:11,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:11,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 03:51:11,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:11,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:51:11,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:11,755 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 375 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-14 03:51:11,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507469446] [2020-10-14 03:51:11,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:11,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:11,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400059716] [2020-10-14 03:51:11,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:11,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:11,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:11,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:11,758 INFO L87 Difference]: Start difference. First operand 5219 states and 5752 transitions. Second operand 7 states. [2020-10-14 03:51:15,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:15,200 INFO L93 Difference]: Finished difference Result 11292 states and 13135 transitions. [2020-10-14 03:51:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:51:15,201 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 493 [2020-10-14 03:51:15,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:15,238 INFO L225 Difference]: With dead ends: 11292 [2020-10-14 03:51:15,238 INFO L226 Difference]: Without dead ends: 6083 [2020-10-14 03:51:15,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:51:15,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6083 states. [2020-10-14 03:51:15,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6083 to 5933. [2020-10-14 03:51:15,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5933 states. [2020-10-14 03:51:15,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5933 states to 5933 states and 6578 transitions. [2020-10-14 03:51:15,436 INFO L78 Accepts]: Start accepts. Automaton has 5933 states and 6578 transitions. Word has length 493 [2020-10-14 03:51:15,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:15,437 INFO L479 AbstractCegarLoop]: Abstraction has 5933 states and 6578 transitions. [2020-10-14 03:51:15,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:15,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5933 states and 6578 transitions. [2020-10-14 03:51:15,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2020-10-14 03:51:15,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:15,463 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:15,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:51:15,463 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:15,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:15,464 INFO L82 PathProgramCache]: Analyzing trace with hash -187250221, now seen corresponding path program 1 times [2020-10-14 03:51:15,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:15,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982175518] [2020-10-14 03:51:15,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:15,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:17,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:20,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:20,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 588 [2020-10-14 03:51:20,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:51:20,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 03:51:20,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:20,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:20,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 03:51:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:51:20,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:20,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:20,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:20,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:20,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:20,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:20,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:51:20,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:20,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:20,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:20,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:20,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:20,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:20,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:20,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:20,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:20,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:51:20,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:20,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 03:51:20,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:20,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:20,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:20,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:51:20,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:20,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:51:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:20,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:21,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:21,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:51:21,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:21,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-14 03:51:21,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:21,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:21,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:21,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:21,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 03:51:21,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:21,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2020-10-14 03:51:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:21,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:21,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:21,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:21,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:21,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:51:21,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:21,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:51:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:21,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 286 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:51:21,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982175518] [2020-10-14 03:51:21,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:21,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:21,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766039958] [2020-10-14 03:51:21,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:21,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:21,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:21,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:21,550 INFO L87 Difference]: Start difference. First operand 5933 states and 6578 transitions. Second operand 7 states. [2020-10-14 03:51:25,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:25,379 INFO L93 Difference]: Finished difference Result 16141 states and 18693 transitions. [2020-10-14 03:51:25,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:51:25,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 574 [2020-10-14 03:51:25,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:25,455 INFO L225 Difference]: With dead ends: 16141 [2020-10-14 03:51:25,455 INFO L226 Difference]: Without dead ends: 10218 [2020-10-14 03:51:25,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:51:25,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2020-10-14 03:51:25,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 9404. [2020-10-14 03:51:25,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9404 states. [2020-10-14 03:51:25,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9404 states to 9404 states and 10617 transitions. [2020-10-14 03:51:25,765 INFO L78 Accepts]: Start accepts. Automaton has 9404 states and 10617 transitions. Word has length 574 [2020-10-14 03:51:25,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:25,766 INFO L479 AbstractCegarLoop]: Abstraction has 9404 states and 10617 transitions. [2020-10-14 03:51:25,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:25,767 INFO L276 IsEmpty]: Start isEmpty. Operand 9404 states and 10617 transitions. [2020-10-14 03:51:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2020-10-14 03:51:25,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:25,802 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:25,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:51:25,802 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:25,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:25,803 INFO L82 PathProgramCache]: Analyzing trace with hash -188874765, now seen corresponding path program 1 times [2020-10-14 03:51:25,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:25,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460050621] [2020-10-14 03:51:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:25,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:26,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:26,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:30,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:30,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 660 [2020-10-14 03:51:30,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:51:30,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 03:51:30,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:30,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 211 [2020-10-14 03:51:30,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:51:30,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:31,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:31,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:31,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:31,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:31,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:31,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:31,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:31,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:31,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:31,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:31,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:31,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:31,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:51:31,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:31,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:51:31,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:31,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:31,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:31,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:31,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:31,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:31,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:51:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:31,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:31,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:31,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:51:31,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:31,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:51:31,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:31,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:31,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:31,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:31,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:51:31,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:31,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-14 03:51:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:31,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:31,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:31,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:51:31,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:31,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-14 03:51:31,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:31,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:31,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:31,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:31,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 03:51:31,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:31,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2020-10-14 03:51:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:31,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:31,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:31,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:31,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:31,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:51:31,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:31,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:51:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:31,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:32,112 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 414 proven. 109 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2020-10-14 03:51:32,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460050621] [2020-10-14 03:51:32,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:32,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:51:32,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471070964] [2020-10-14 03:51:32,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:51:32,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:32,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:51:32,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:51:32,115 INFO L87 Difference]: Start difference. First operand 9404 states and 10617 transitions. Second operand 8 states. [2020-10-14 03:51:38,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:38,986 INFO L93 Difference]: Finished difference Result 22591 states and 26129 transitions. [2020-10-14 03:51:38,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:51:38,987 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 644 [2020-10-14 03:51:38,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:39,037 INFO L225 Difference]: With dead ends: 22591 [2020-10-14 03:51:39,038 INFO L226 Difference]: Without dead ends: 13197 [2020-10-14 03:51:39,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 03:51:39,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13197 states. [2020-10-14 03:51:39,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13197 to 12842. [2020-10-14 03:51:39,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12842 states. [2020-10-14 03:51:39,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12842 states to 12842 states and 14475 transitions. [2020-10-14 03:51:39,394 INFO L78 Accepts]: Start accepts. Automaton has 12842 states and 14475 transitions. Word has length 644 [2020-10-14 03:51:39,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:39,395 INFO L479 AbstractCegarLoop]: Abstraction has 12842 states and 14475 transitions. [2020-10-14 03:51:39,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:51:39,396 INFO L276 IsEmpty]: Start isEmpty. Operand 12842 states and 14475 transitions. [2020-10-14 03:51:39,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2020-10-14 03:51:39,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:39,433 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:51:39,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:51:39,433 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:39,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:39,434 INFO L82 PathProgramCache]: Analyzing trace with hash 466562371, now seen corresponding path program 1 times [2020-10-14 03:51:39,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:39,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013185574] [2020-10-14 03:51:39,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:39,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:39,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:39,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:42,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:44,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:44,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 708 [2020-10-14 03:51:44,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:51:44,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 03:51:44,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:44,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:44,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:44,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:51:44,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:51:44,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:44,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:44,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:44,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:44,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:44,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:44,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:44,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:44,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:44,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:44,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:44,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:44,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:44,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:44,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:51:44,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:51:44,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:44,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:44,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:51:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:44,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:45,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:45,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:51:45,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:45,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 03:51:45,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:45,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:45,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:45,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:45,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:51:45,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:45,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:51:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:45,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:45,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:45,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:45,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:45,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:51:45,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:45,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:51:45,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:45,592 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 375 proven. 2 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-10-14 03:51:45,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013185574] [2020-10-14 03:51:45,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:45,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:45,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797733255] [2020-10-14 03:51:45,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:45,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:45,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:45,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:45,594 INFO L87 Difference]: Start difference. First operand 12842 states and 14475 transitions. Second operand 7 states. [2020-10-14 03:51:49,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:49,754 INFO L93 Difference]: Finished difference Result 26871 states and 31172 transitions. [2020-10-14 03:51:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:51:49,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 694 [2020-10-14 03:51:49,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:49,830 INFO L225 Difference]: With dead ends: 26871 [2020-10-14 03:51:49,830 INFO L226 Difference]: Without dead ends: 14039 [2020-10-14 03:51:49,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:51:49,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14039 states. [2020-10-14 03:51:50,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14039 to 13871. [2020-10-14 03:51:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13871 states. [2020-10-14 03:51:50,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13871 states to 13871 states and 15554 transitions. [2020-10-14 03:51:50,194 INFO L78 Accepts]: Start accepts. Automaton has 13871 states and 15554 transitions. Word has length 694 [2020-10-14 03:51:50,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:50,196 INFO L479 AbstractCegarLoop]: Abstraction has 13871 states and 15554 transitions. [2020-10-14 03:51:50,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:50,196 INFO L276 IsEmpty]: Start isEmpty. Operand 13871 states and 15554 transitions. [2020-10-14 03:51:50,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2020-10-14 03:51:50,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:50,235 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:50,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:51:50,236 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:50,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:50,236 INFO L82 PathProgramCache]: Analyzing trace with hash -671016933, now seen corresponding path program 1 times [2020-10-14 03:51:50,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:50,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835410203] [2020-10-14 03:51:50,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:50,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:50,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:50,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:51,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:55,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:55,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 750 [2020-10-14 03:51:55,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:51:55,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 03:51:55,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:55,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:51:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:51:55,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:55,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:55,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:55,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:55,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:55,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:55,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:51:55,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:55,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:55,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:55,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:55,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:55,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:55,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:55,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:55,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:55,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:51:55,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:55,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:51:55,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:55,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:55,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:55,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:55,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:55,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:51:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:55,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:55,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:55,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:51:55,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:55,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:51:55,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:55,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:55,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:55,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:55,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:55,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-14 03:51:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:55,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:55,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:55,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:51:55,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:55,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:51:55,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:55,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:51:55,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:55,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-14 03:51:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:55,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:55,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:55,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:51:55,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:55,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-14 03:51:55,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:55,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:55,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:55,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:55,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:51:55,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:56,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 571 [2020-10-14 03:51:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:56,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:56,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:56,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:56,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:51:56,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:56,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:56,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:51:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:56,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 586 proven. 109 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2020-10-14 03:51:56,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835410203] [2020-10-14 03:51:56,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:56,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:56,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402082532] [2020-10-14 03:51:56,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:56,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:56,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:56,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:56,608 INFO L87 Difference]: Start difference. First operand 13871 states and 15554 transitions. Second operand 7 states. [2020-10-14 03:52:00,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:00,523 INFO L93 Difference]: Finished difference Result 29629 states and 33737 transitions. [2020-10-14 03:52:00,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:52:00,525 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 732 [2020-10-14 03:52:00,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:00,589 INFO L225 Difference]: With dead ends: 29629 [2020-10-14 03:52:00,589 INFO L226 Difference]: Without dead ends: 15768 [2020-10-14 03:52:00,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:52:00,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15768 states. [2020-10-14 03:52:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15768 to 15575. [2020-10-14 03:52:00,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15575 states. [2020-10-14 03:52:00,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15575 states to 15575 states and 17338 transitions. [2020-10-14 03:52:01,000 INFO L78 Accepts]: Start accepts. Automaton has 15575 states and 17338 transitions. Word has length 732 [2020-10-14 03:52:01,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:01,001 INFO L479 AbstractCegarLoop]: Abstraction has 15575 states and 17338 transitions. [2020-10-14 03:52:01,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:01,002 INFO L276 IsEmpty]: Start isEmpty. Operand 15575 states and 17338 transitions. [2020-10-14 03:52:01,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2020-10-14 03:52:01,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:01,047 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:52:01,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:52:01,048 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:01,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:01,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1195913882, now seen corresponding path program 1 times [2020-10-14 03:52:01,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:01,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714225676] [2020-10-14 03:52:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:01,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:01,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:01,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:02,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:06,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:06,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 789 [2020-10-14 03:52:06,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:06,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 03:52:06,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:06,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:06,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:06,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-14 03:52:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:52:06,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:06,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:06,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:06,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:06,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:06,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:06,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:06,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:06,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:06,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:06,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:06,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:06,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:06,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:06,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:52:06,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:06,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:52:06,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:06,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:06,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:06,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:06,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:06,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:06,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:52:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:06,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:06,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:06,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 03:52:06,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:06,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:52:06,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:06,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:06,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 03:52:06,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:06,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-14 03:52:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:06,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:06,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:06,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:52:06,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:06,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:52:06,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:06,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:52:06,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:06,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-10-14 03:52:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:06,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:06,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:06,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:52:06,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:06,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:52:06,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:06,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:06,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:52:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:06,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:06,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2020-10-14 03:52:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:06,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:06,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:06,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:52:06,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:06,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:52:06,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:06,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:52:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:06,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 626 [2020-10-14 03:52:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:06,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:06,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:06,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 03:52:06,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:06,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:52:06,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:06,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 03:52:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:06,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:07,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1874 backedges. 557 proven. 337 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2020-10-14 03:52:07,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714225676] [2020-10-14 03:52:07,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:07,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:07,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019930917] [2020-10-14 03:52:07,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:07,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:07,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:07,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:07,017 INFO L87 Difference]: Start difference. First operand 15575 states and 17338 transitions. Second operand 7 states. [2020-10-14 03:52:10,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:10,115 INFO L93 Difference]: Finished difference Result 33337 states and 36838 transitions. [2020-10-14 03:52:10,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:52:10,116 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 769 [2020-10-14 03:52:10,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:10,158 INFO L225 Difference]: With dead ends: 33337 [2020-10-14 03:52:10,158 INFO L226 Difference]: Without dead ends: 17772 [2020-10-14 03:52:10,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:52:10,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17772 states. [2020-10-14 03:52:10,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17772 to 16749. [2020-10-14 03:52:10,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16749 states. [2020-10-14 03:52:10,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16749 states to 16749 states and 17996 transitions. [2020-10-14 03:52:10,441 INFO L78 Accepts]: Start accepts. Automaton has 16749 states and 17996 transitions. Word has length 769 [2020-10-14 03:52:10,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:10,441 INFO L479 AbstractCegarLoop]: Abstraction has 16749 states and 17996 transitions. [2020-10-14 03:52:10,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:10,442 INFO L276 IsEmpty]: Start isEmpty. Operand 16749 states and 17996 transitions. [2020-10-14 03:52:10,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2020-10-14 03:52:10,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:10,470 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:52:10,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:52:10,471 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:10,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:10,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1255430873, now seen corresponding path program 1 times [2020-10-14 03:52:10,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:10,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117926811] [2020-10-14 03:52:10,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:10,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:10,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:11,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:12,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:15,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:15,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 904 [2020-10-14 03:52:15,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 03:52:15,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:15,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 456 [2020-10-14 03:52:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:52:15,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:15,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:15,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:15,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:15,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:15,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:15,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:52:15,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:15,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:15,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:15,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:15,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:15,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:52:15,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:15,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:52:15,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:15,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 100 [2020-10-14 03:52:15,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:52:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:15,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:52:16,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 03:52:16,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:16,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:52:16,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:52:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:16,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 03:52:16,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:16,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:16,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:52:16,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-14 03:52:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:52:16,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:52:16,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:16,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:52:16,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:16,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1183 backedges. 659 proven. 111 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2020-10-14 03:52:17,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117926811] [2020-10-14 03:52:17,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:17,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:17,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731238668] [2020-10-14 03:52:17,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:17,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:17,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:17,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:17,808 INFO L87 Difference]: Start difference. First operand 16749 states and 17996 transitions. Second operand 7 states. [2020-10-14 03:52:21,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:21,175 INFO L93 Difference]: Finished difference Result 33506 states and 36013 transitions. [2020-10-14 03:52:21,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:52:21,176 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 888 [2020-10-14 03:52:21,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:21,222 INFO L225 Difference]: With dead ends: 33506 [2020-10-14 03:52:21,222 INFO L226 Difference]: Without dead ends: 16763 [2020-10-14 03:52:21,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:52:21,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16763 states. [2020-10-14 03:52:21,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16763 to 16412. [2020-10-14 03:52:21,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16412 states. [2020-10-14 03:52:21,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16412 states to 16412 states and 17633 transitions. [2020-10-14 03:52:21,484 INFO L78 Accepts]: Start accepts. Automaton has 16412 states and 17633 transitions. Word has length 888 [2020-10-14 03:52:21,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:21,485 INFO L479 AbstractCegarLoop]: Abstraction has 16412 states and 17633 transitions. [2020-10-14 03:52:21,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:21,486 INFO L276 IsEmpty]: Start isEmpty. Operand 16412 states and 17633 transitions. [2020-10-14 03:52:21,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1002 [2020-10-14 03:52:21,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:21,511 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:52:21,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:52:21,512 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:21,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:21,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1305152086, now seen corresponding path program 1 times [2020-10-14 03:52:21,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:21,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735151465] [2020-10-14 03:52:21,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:21,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:21,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:21,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:22,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:26,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:26,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1023 [2020-10-14 03:52:26,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:26,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 03:52:26,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:26,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:26,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:26,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:52:26,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:52:26,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:26,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:26,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:26,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:26,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:26,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:26,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:26,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:26,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:26,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:26,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:26,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:26,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:26,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:26,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:26,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:26,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:52:26,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:26,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:52:26,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:26,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:26,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:26,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:26,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:26,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:26,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:52:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:26,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:26,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:26,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:52:26,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:26,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:52:26,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:26,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:26,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:26,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:26,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:52:26,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:26,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:52:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:26,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:26,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:26,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:52:26,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:26,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:52:26,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:26,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:26,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:26,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:26,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:52:26,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:27,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-14 03:52:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:27,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:27,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:27,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:52:27,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:27,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 03:52:27,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:27,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:52:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:27,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:27,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:52:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:27,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:27,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:27,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:52:27,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:27,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:52:27,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:27,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:27,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:52:27,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 768 [2020-10-14 03:52:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:27,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:27,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:27,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:52:27,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:27,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 03:52:27,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:27,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:27,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:27,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:52:27,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:27,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:27,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 878 [2020-10-14 03:52:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:27,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:27,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:27,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:52:27,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:27,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:52:27,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:27,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:52:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:27,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1754 backedges. 519 proven. 290 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2020-10-14 03:52:28,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735151465] [2020-10-14 03:52:28,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:28,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:28,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9134129] [2020-10-14 03:52:28,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:28,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:28,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:28,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:28,017 INFO L87 Difference]: Start difference. First operand 16412 states and 17633 transitions. Second operand 7 states. [2020-10-14 03:52:31,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:31,887 INFO L93 Difference]: Finished difference Result 32830 states and 35282 transitions. [2020-10-14 03:52:31,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:52:31,888 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1001 [2020-10-14 03:52:31,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:31,934 INFO L225 Difference]: With dead ends: 32830 [2020-10-14 03:52:31,935 INFO L226 Difference]: Without dead ends: 16424 [2020-10-14 03:52:31,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:52:31,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16424 states. [2020-10-14 03:52:32,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16424 to 15732. [2020-10-14 03:52:32,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15732 states. [2020-10-14 03:52:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15732 states to 15732 states and 16470 transitions. [2020-10-14 03:52:32,209 INFO L78 Accepts]: Start accepts. Automaton has 15732 states and 16470 transitions. Word has length 1001 [2020-10-14 03:52:32,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:32,210 INFO L479 AbstractCegarLoop]: Abstraction has 15732 states and 16470 transitions. [2020-10-14 03:52:32,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:32,210 INFO L276 IsEmpty]: Start isEmpty. Operand 15732 states and 16470 transitions. [2020-10-14 03:52:32,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2020-10-14 03:52:32,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:32,235 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:52:32,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:52:32,236 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:32,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:32,236 INFO L82 PathProgramCache]: Analyzing trace with hash -212403309, now seen corresponding path program 1 times [2020-10-14 03:52:32,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:32,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913211639] [2020-10-14 03:52:32,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:32,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:32,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:37,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:37,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1024 [2020-10-14 03:52:37,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:37,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 03:52:37,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:37,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:52:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:52:37,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:37,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:37,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:37,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:37,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:37,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:37,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:37,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:37,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:37,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:37,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:37,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:37,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:37,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:37,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:52:37,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:37,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:52:37,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:37,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:37,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:37,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:37,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:37,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:37,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:52:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:37,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:37,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:37,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:52:37,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:37,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:52:37,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:37,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:52:37,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:37,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:52:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:37,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:37,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:37,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:52:37,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 03:52:37,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:37,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:52:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:37,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:52:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:37,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:38,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:38,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:52:38,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:38,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 03:52:38,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:38,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:38,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:38,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:52:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:38,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:52:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:38,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:38,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:38,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:52:38,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:38,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:52:38,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:38,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:38,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:38,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:38,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:38,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:38,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-14 03:52:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:38,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:38,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:38,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:52:38,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:38,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:52:38,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:38,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:38,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:38,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:52:38,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:38,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:38,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 879 [2020-10-14 03:52:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:38,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:38,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:38,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:52:38,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:38,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:52:38,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:38,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:38,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:38,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:52:38,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:38,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1759 backedges. 520 proven. 290 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2020-10-14 03:52:38,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913211639] [2020-10-14 03:52:38,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:38,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:38,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421416628] [2020-10-14 03:52:38,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:38,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:38,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:38,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:38,591 INFO L87 Difference]: Start difference. First operand 15732 states and 16470 transitions. Second operand 7 states. [2020-10-14 03:52:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:45,717 INFO L93 Difference]: Finished difference Result 34061 states and 36125 transitions. [2020-10-14 03:52:45,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:52:45,719 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1002 [2020-10-14 03:52:45,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:45,772 INFO L225 Difference]: With dead ends: 34061 [2020-10-14 03:52:45,773 INFO L226 Difference]: Without dead ends: 18335 [2020-10-14 03:52:45,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:52:45,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18335 states. [2020-10-14 03:52:46,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18335 to 18113. [2020-10-14 03:52:46,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18113 states. [2020-10-14 03:52:46,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18113 states to 18113 states and 18939 transitions. [2020-10-14 03:52:46,099 INFO L78 Accepts]: Start accepts. Automaton has 18113 states and 18939 transitions. Word has length 1002 [2020-10-14 03:52:46,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:46,099 INFO L479 AbstractCegarLoop]: Abstraction has 18113 states and 18939 transitions. [2020-10-14 03:52:46,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:46,100 INFO L276 IsEmpty]: Start isEmpty. Operand 18113 states and 18939 transitions. [2020-10-14 03:52:46,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1015 [2020-10-14 03:52:46,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:46,130 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:52:46,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:52:46,130 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:46,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:46,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1783394771, now seen corresponding path program 1 times [2020-10-14 03:52:46,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:46,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867855559] [2020-10-14 03:52:46,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:46,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:46,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:46,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:51,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:51,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1034 [2020-10-14 03:52:51,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:51,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 03:52:51,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:51,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:51,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:51,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:52:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:52:51,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:52:51,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:51,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:51,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:51,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:51,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:51,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:52:51,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:51,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:51,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:51,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:51,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:51,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:52:51,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:51,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:51,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:51,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:52:51,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:51,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 03:52:51,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:51,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:51,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:51,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:51,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:51,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:52:51,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:52:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:51,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:51,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:51,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:52:51,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:52:51,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:51,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:52:51,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:52:51,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:52:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:51,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:51,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:51,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:52:51,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:51,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 03:52:51,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:51,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:52:51,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:51,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 03:52:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:51,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:51,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:51,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:52:51,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:51,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:52:51,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:51,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:51,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:51,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:52:51,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:51,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:51,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2020-10-14 03:52:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:51,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:52,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:52,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:52:52,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:52,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:52:52,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:52,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:52:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:52,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:52,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2020-10-14 03:52:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:52,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:52,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:52,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:52:52,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:52,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 03:52:52,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:52,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:52,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:52,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:52:52,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:52,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:52:52,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2156 backedges. 574 proven. 389 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2020-10-14 03:52:52,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867855559] [2020-10-14 03:52:52,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:52,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:52,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069481988] [2020-10-14 03:52:52,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:52,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:52,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:52,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:52,730 INFO L87 Difference]: Start difference. First operand 18113 states and 18939 transitions. Second operand 7 states. [2020-10-14 03:52:56,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:56,851 INFO L93 Difference]: Finished difference Result 39597 states and 41553 transitions. [2020-10-14 03:52:56,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:52:56,852 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1014 [2020-10-14 03:52:56,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:56,901 INFO L225 Difference]: With dead ends: 39597 [2020-10-14 03:52:56,901 INFO L226 Difference]: Without dead ends: 21843 [2020-10-14 03:52:56,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:52:56,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21843 states. [2020-10-14 03:52:57,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21843 to 20824. [2020-10-14 03:52:57,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20824 states. [2020-10-14 03:52:57,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20824 states to 20824 states and 21878 transitions. [2020-10-14 03:52:57,281 INFO L78 Accepts]: Start accepts. Automaton has 20824 states and 21878 transitions. Word has length 1014 [2020-10-14 03:52:57,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:57,282 INFO L479 AbstractCegarLoop]: Abstraction has 20824 states and 21878 transitions. [2020-10-14 03:52:57,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:57,282 INFO L276 IsEmpty]: Start isEmpty. Operand 20824 states and 21878 transitions. [2020-10-14 03:52:57,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2020-10-14 03:52:57,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:57,310 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:52:57,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:52:57,313 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:57,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:57,314 INFO L82 PathProgramCache]: Analyzing trace with hash 2020810422, now seen corresponding path program 1 times [2020-10-14 03:52:57,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:57,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275863622] [2020-10-14 03:52:57,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:57,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:57,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:57,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:58,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:02,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:02,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1119 [2020-10-14 03:53:02,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:53:02,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 03:53:02,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:02,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:02,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:02,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 622 [2020-10-14 03:53:02,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:53:02,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:02,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:02,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:02,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:02,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:02,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:02,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:53:02,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:02,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:02,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:02,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:02,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:02,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:02,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:02,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:02,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:02,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:53:02,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:02,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:53:02,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:02,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:02,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:02,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:53:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:02,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:02,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:02,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:53:02,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:02,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:53:02,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:02,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:02,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:02,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:02,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:02,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:02,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:53:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:02,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:02,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:02,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:53:02,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:02,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:53:02,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:02,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:02,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:02,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:02,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:53:02,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:02,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:53:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:02,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:03,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:03,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:53:03,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:03,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-14 03:53:03,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:03,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:03,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:03,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:03,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:53:03,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:03,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 866 [2020-10-14 03:53:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:03,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:03,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:03,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:03,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:03,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:53:03,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:03,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:03,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:03,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:03,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:03,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:03,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 976 [2020-10-14 03:53:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:03,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:03,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:03,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:53:03,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:03,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:53:03,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:03,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:03,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:03,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:53:03,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:03,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:04,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2082 backedges. 919 proven. 178 refuted. 0 times theorem prover too weak. 985 trivial. 0 not checked. [2020-10-14 03:53:04,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275863622] [2020-10-14 03:53:04,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:04,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:04,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642298262] [2020-10-14 03:53:04,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:04,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:04,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:04,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:04,079 INFO L87 Difference]: Start difference. First operand 20824 states and 21878 transitions. Second operand 7 states. [2020-10-14 03:53:09,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:09,821 INFO L93 Difference]: Finished difference Result 43607 states and 46510 transitions. [2020-10-14 03:53:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:53:09,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1099 [2020-10-14 03:53:09,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:09,882 INFO L225 Difference]: With dead ends: 43607 [2020-10-14 03:53:09,883 INFO L226 Difference]: Without dead ends: 23475 [2020-10-14 03:53:09,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:53:09,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23475 states. [2020-10-14 03:53:10,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23475 to 23201. [2020-10-14 03:53:10,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23201 states. [2020-10-14 03:53:10,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23201 states to 23201 states and 24258 transitions. [2020-10-14 03:53:10,278 INFO L78 Accepts]: Start accepts. Automaton has 23201 states and 24258 transitions. Word has length 1099 [2020-10-14 03:53:10,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:10,279 INFO L479 AbstractCegarLoop]: Abstraction has 23201 states and 24258 transitions. [2020-10-14 03:53:10,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:10,279 INFO L276 IsEmpty]: Start isEmpty. Operand 23201 states and 24258 transitions. [2020-10-14 03:53:10,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1107 [2020-10-14 03:53:10,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:10,305 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:10,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:53:10,306 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:10,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:10,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1350243877, now seen corresponding path program 1 times [2020-10-14 03:53:10,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:10,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168720815] [2020-10-14 03:53:10,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:10,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:10,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:10,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:11,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:12,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:15,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:15,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1126 [2020-10-14 03:53:15,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:53:15,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-14 03:53:15,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:15,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:53:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:53:15,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:15,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:15,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:15,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:15,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:15,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:15,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:53:15,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:15,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:15,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:15,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:15,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:15,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:53:15,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:15,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:53:15,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:15,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:15,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:15,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:15,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:15,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:15,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:53:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:15,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:15,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:15,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:53:15,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:15,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:53:15,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:15,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:53:15,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:15,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:53:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:15,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:16,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:16,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:53:16,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:16,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 428 [2020-10-14 03:53:16,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:16,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:16,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:53:16,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:16,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2020-10-14 03:53:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:16,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:16,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:16,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:53:16,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:16,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:53:16,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:16,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:16,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:16,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:53:16,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:16,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:16,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 730 [2020-10-14 03:53:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:16,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:16,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:16,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:16,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:16,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:53:16,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:16,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:16,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:17,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:17,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:17,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:17,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 840 [2020-10-14 03:53:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:17,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:17,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:17,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:53:17,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:17,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 03:53:17,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:17,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:53:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:17,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 653 proven. 460 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2020-10-14 03:53:18,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168720815] [2020-10-14 03:53:18,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:18,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:18,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859950370] [2020-10-14 03:53:18,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:18,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:18,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:18,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:18,347 INFO L87 Difference]: Start difference. First operand 23201 states and 24258 transitions. Second operand 7 states. [2020-10-14 03:53:23,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:23,063 INFO L93 Difference]: Finished difference Result 47412 states and 49630 transitions. [2020-10-14 03:53:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:53:23,064 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1106 [2020-10-14 03:53:23,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:23,105 INFO L225 Difference]: With dead ends: 47412 [2020-10-14 03:53:23,105 INFO L226 Difference]: Without dead ends: 24905 [2020-10-14 03:53:23,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:53:23,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24905 states. [2020-10-14 03:53:23,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24905 to 24899. [2020-10-14 03:53:23,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24899 states. [2020-10-14 03:53:23,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24899 states to 24899 states and 26026 transitions. [2020-10-14 03:53:23,662 INFO L78 Accepts]: Start accepts. Automaton has 24899 states and 26026 transitions. Word has length 1106 [2020-10-14 03:53:23,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:23,663 INFO L479 AbstractCegarLoop]: Abstraction has 24899 states and 26026 transitions. [2020-10-14 03:53:23,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 24899 states and 26026 transitions. [2020-10-14 03:53:23,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1181 [2020-10-14 03:53:23,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:23,689 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:23,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:53:23,689 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:23,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:23,690 INFO L82 PathProgramCache]: Analyzing trace with hash -354256033, now seen corresponding path program 1 times [2020-10-14 03:53:23,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:23,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330092174] [2020-10-14 03:53:23,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:23,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:24,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:28,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:28,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:28,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:28,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1200 [2020-10-14 03:53:28,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:53:28,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 03:53:28,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:28,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:53:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:53:28,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 275 [2020-10-14 03:53:28,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:28,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:28,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:28,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:28,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:28,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:28,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:53:28,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:28,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:28,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:28,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:28,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:28,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:29,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:29,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:29,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:29,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:53:29,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:29,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:53:29,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:29,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:29,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:29,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:29,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:53:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:29,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:29,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:29,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:53:29,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:29,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:53:29,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:29,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:29,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:29,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:29,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:29,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:53:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:29,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:29,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:29,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:53:29,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:29,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:53:29,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:29,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:29,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:29,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:29,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:29,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:53:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:29,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:29,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:29,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:53:29,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:29,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:53:29,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:29,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:29,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:29,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:29,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:29,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:53:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:29,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:29,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:29,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:29,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:29,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:53:29,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:29,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:29,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:29,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:29,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:53:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:29,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:53:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:29,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:29,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:29,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:29,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:53:29,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:53:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-14 03:53:29,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:29,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 03:53:29,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2410 backedges. 342 proven. 6 refuted. 0 times theorem prover too weak. 2062 trivial. 0 not checked. [2020-10-14 03:53:30,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330092174] [2020-10-14 03:53:30,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:30,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:53:30,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14327247] [2020-10-14 03:53:30,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:53:30,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:30,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:53:30,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:53:30,308 INFO L87 Difference]: Start difference. First operand 24899 states and 26026 transitions. Second operand 5 states. [2020-10-14 03:53:33,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:33,301 INFO L93 Difference]: Finished difference Result 48767 states and 51009 transitions. [2020-10-14 03:53:33,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:53:33,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1180 [2020-10-14 03:53:33,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:33,346 INFO L225 Difference]: With dead ends: 48767 [2020-10-14 03:53:33,347 INFO L226 Difference]: Without dead ends: 24564 [2020-10-14 03:53:33,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:53:33,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24564 states. [2020-10-14 03:53:33,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24564 to 24219. [2020-10-14 03:53:33,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24219 states. [2020-10-14 03:53:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24219 states to 24219 states and 25062 transitions. [2020-10-14 03:53:33,684 INFO L78 Accepts]: Start accepts. Automaton has 24219 states and 25062 transitions. Word has length 1180 [2020-10-14 03:53:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:33,686 INFO L479 AbstractCegarLoop]: Abstraction has 24219 states and 25062 transitions. [2020-10-14 03:53:33,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:53:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 24219 states and 25062 transitions. [2020-10-14 03:53:33,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1208 [2020-10-14 03:53:33,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:33,716 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:33,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:53:33,717 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:33,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:33,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1409297606, now seen corresponding path program 1 times [2020-10-14 03:53:33,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:33,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43076217] [2020-10-14 03:53:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:33,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:35,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:38,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:38,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1231 [2020-10-14 03:53:38,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:53:38,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-14 03:53:38,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:38,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:38,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:38,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:53:38,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 03:53:38,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:39,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:39,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:53:39,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:39,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:39,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:39,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:39,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:53:39,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-14 03:53:39,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:53:39,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:39,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:53:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:53:39,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-14 03:53:39,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 03:53:39,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:39,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-14 03:53:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:53:39,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:53:39,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:39,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:53:39,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:39,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:40,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 03:53:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:40,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:40,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:53:40,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:40,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-14 03:53:40,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:40,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:53:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:40,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:40,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:40,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:53:40,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:40,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:53:40,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:40,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:40,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:40,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:40,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 900 [2020-10-14 03:53:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:40,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:40,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:53:40,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:40,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:53:40,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:40,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:40,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:40,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:53:40,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:40,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:40,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 974 [2020-10-14 03:53:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:40,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:40,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:40,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:40,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:53:40,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:40,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:40,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:40,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:40,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:40,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:40,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1084 [2020-10-14 03:53:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:40,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:40,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:53:40,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:40,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:53:40,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:40,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:40,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:40,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:53:40,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:40,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2602 backedges. 582 proven. 559 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2020-10-14 03:53:41,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43076217] [2020-10-14 03:53:41,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:41,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:41,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136035803] [2020-10-14 03:53:41,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:41,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:41,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:41,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:41,439 INFO L87 Difference]: Start difference. First operand 24219 states and 25062 transitions. Second operand 7 states. [2020-10-14 03:53:46,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:46,133 INFO L93 Difference]: Finished difference Result 50119 states and 51913 transitions. [2020-10-14 03:53:46,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:53:46,134 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1207 [2020-10-14 03:53:46,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:46,180 INFO L225 Difference]: With dead ends: 50119 [2020-10-14 03:53:46,180 INFO L226 Difference]: Without dead ends: 26596 [2020-10-14 03:53:46,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:53:46,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26596 states. [2020-10-14 03:53:46,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26596 to 24897. [2020-10-14 03:53:46,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24897 states. [2020-10-14 03:53:46,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24897 states to 24897 states and 25781 transitions. [2020-10-14 03:53:46,486 INFO L78 Accepts]: Start accepts. Automaton has 24897 states and 25781 transitions. Word has length 1207 [2020-10-14 03:53:46,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:46,486 INFO L479 AbstractCegarLoop]: Abstraction has 24897 states and 25781 transitions. [2020-10-14 03:53:46,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:46,487 INFO L276 IsEmpty]: Start isEmpty. Operand 24897 states and 25781 transitions. [2020-10-14 03:53:46,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1299 [2020-10-14 03:53:46,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:46,511 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:46,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:53:46,511 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:46,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:46,512 INFO L82 PathProgramCache]: Analyzing trace with hash 2083630347, now seen corresponding path program 1 times [2020-10-14 03:53:46,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:46,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945903718] [2020-10-14 03:53:46,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:46,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:47,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:47,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking...