/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:17:43,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:17:43,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:17:43,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:17:43,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:17:43,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:17:43,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:17:43,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:17:43,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:17:43,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:17:43,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:17:43,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:17:43,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:17:43,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:17:43,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:17:43,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:17:43,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:17:43,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:17:43,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:17:43,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:17:43,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:17:43,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:17:43,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:17:43,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:17:43,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:17:43,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:17:43,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:17:43,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:17:43,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:17:43,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:17:43,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:17:43,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:17:43,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:17:43,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:17:43,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:17:43,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:17:43,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:17:43,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:17:43,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:17:43,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:17:43,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:17:43,203 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 22:17:43,226 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:17:43,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:17:43,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:17:43,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:17:43,228 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:17:43,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:17:43,228 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:17:43,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:17:43,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:17:43,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:17:43,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:17:43,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:17:43,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:17:43,230 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:17:43,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:17:43,230 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:17:43,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:17:43,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:17:43,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:17:43,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:17:43,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:17:43,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:17:43,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:17:43,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:17:43,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:17:43,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:17:43,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:17:43,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:17:43,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:17:43,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:17:43,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:17:43,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:17:43,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:17:43,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:17:43,575 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:17:43,576 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label39.c [2020-10-14 22:17:43,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e69e28ebb/62cd8ac5d43242b187d377e5ea63cc43/FLAGb9b82af34 [2020-10-14 22:17:44,302 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:17:44,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label39.c [2020-10-14 22:17:44,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e69e28ebb/62cd8ac5d43242b187d377e5ea63cc43/FLAGb9b82af34 [2020-10-14 22:17:44,504 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e69e28ebb/62cd8ac5d43242b187d377e5ea63cc43 [2020-10-14 22:17:44,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:17:44,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:17:44,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:17:44,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:17:44,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:17:44,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:17:44" (1/1) ... [2020-10-14 22:17:44,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cab3797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:17:44, skipping insertion in model container [2020-10-14 22:17:44,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:17:44" (1/1) ... [2020-10-14 22:17:44,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:17:44,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:17:45,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:17:45,519 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:17:45,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:17:45,910 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:17:45,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:17:45 WrapperNode [2020-10-14 22:17:45,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:17:45,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:17:45,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:17:45,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:17:45,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:17:45" (1/1) ... [2020-10-14 22:17:45,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:17:45" (1/1) ... [2020-10-14 22:17:45,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:17:45" (1/1) ... [2020-10-14 22:17:45,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:17:45" (1/1) ... [2020-10-14 22:17:46,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:17:45" (1/1) ... [2020-10-14 22:17:46,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:17:45" (1/1) ... [2020-10-14 22:17:46,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:17:45" (1/1) ... [2020-10-14 22:17:46,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:17:46,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:17:46,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:17:46,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:17:46,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:17:45" (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 22:17:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:17:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:17:46,179 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:17:46,179 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:17:46,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:17:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:17:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:17:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:17:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:17:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:17:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:17:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:17:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:17:48,403 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:17:48,404 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:17:48,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:17:48 BoogieIcfgContainer [2020-10-14 22:17:48,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:17:48,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:17:48,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:17:48,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:17:48,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:17:44" (1/3) ... [2020-10-14 22:17:48,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47158b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:17:48, skipping insertion in model container [2020-10-14 22:17:48,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:17:45" (2/3) ... [2020-10-14 22:17:48,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47158b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:17:48, skipping insertion in model container [2020-10-14 22:17:48,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:17:48" (3/3) ... [2020-10-14 22:17:48,421 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label39.c [2020-10-14 22:17:48,433 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:17:48,442 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:17:48,458 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:17:48,487 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:17:48,487 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:17:48,487 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:17:48,487 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:17:48,488 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:17:48,488 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:17:48,488 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:17:48,488 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:17:48,517 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:17:48,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 22:17:48,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:48,529 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] [2020-10-14 22:17:48,530 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:48,537 INFO L82 PathProgramCache]: Analyzing trace with hash 697070738, now seen corresponding path program 1 times [2020-10-14 22:17:48,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:48,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969893413] [2020-10-14 22:17:48,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 22:17:49,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:49,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-10-14 22:17:49,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:17:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:17:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 22:17:49,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:17:49,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:49,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:49,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:17:49,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:49,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:17:49,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:49,338 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 22:17:49,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969893413] [2020-10-14 22:17:49,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:17:49,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:17:49,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381921464] [2020-10-14 22:17:49,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:17:49,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:49,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:17:49,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:17:49,370 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:17:52,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:52,961 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 22:17:52,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:17:52,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2020-10-14 22:17:52,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:52,988 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:17:52,988 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:17:52,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:17:53,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:17:53,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 22:17:53,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 22:17:53,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 22:17:53,181 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 55 [2020-10-14 22:17:53,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:53,182 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 22:17:53,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:17:53,183 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 22:17:53,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 22:17:53,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:53,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:17:53,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:17:53,190 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:53,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:53,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1997031198, now seen corresponding path program 1 times [2020-10-14 22:17:53,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:53,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184100507] [2020-10-14 22:17:53,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:53,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:53,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:54,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:54,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 22:17:54,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 882 [2020-10-14 22:17:54,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:54,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:54,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:17:54,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:17:54,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:17:54,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:17:54,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:54,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:54,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:54,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:54,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:54,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:17:54,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:54,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:54,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:54,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:54,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:17:54,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:54,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:54,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:54,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:54,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:17:54,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:54,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 22:17:54,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:54,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:17:54,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:54,501 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:17:54,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184100507] [2020-10-14 22:17:54,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:17:54,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:17:54,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774460712] [2020-10-14 22:17:54,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:17:54,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:54,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:17:54,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:17:54,506 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 8 states. [2020-10-14 22:18:00,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:00,268 INFO L93 Difference]: Finished difference Result 2769 states and 4138 transitions. [2020-10-14 22:18:00,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:18:00,270 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 131 [2020-10-14 22:18:00,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:00,285 INFO L225 Difference]: With dead ends: 2769 [2020-10-14 22:18:00,285 INFO L226 Difference]: Without dead ends: 2083 [2020-10-14 22:18:00,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:18:00,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2020-10-14 22:18:00,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 2069. [2020-10-14 22:18:00,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2020-10-14 22:18:00,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2818 transitions. [2020-10-14 22:18:00,379 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2818 transitions. Word has length 131 [2020-10-14 22:18:00,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:00,380 INFO L479 AbstractCegarLoop]: Abstraction has 2069 states and 2818 transitions. [2020-10-14 22:18:00,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:18:00,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2818 transitions. [2020-10-14 22:18:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-14 22:18:00,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:00,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:18:00,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:18:00,385 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:00,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:00,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1995945739, now seen corresponding path program 1 times [2020-10-14 22:18:00,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:00,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84441286] [2020-10-14 22:18:00,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:00,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:00,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:00,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 22:18:00,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:00,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-14 22:18:00,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:00,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:00,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:00,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:18:00,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 22:18:00,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:00,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:00,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:00,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:00,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:00,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:00,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:18:00,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:00,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:00,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:00,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:00,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:00,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:00,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:00,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:00,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:00,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:18:00,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:00,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 22:18:00,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:00,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:00,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:00,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:00,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:18:00,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:00,982 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:18:00,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84441286] [2020-10-14 22:18:00,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:00,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:18:00,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530544861] [2020-10-14 22:18:00,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:18:00,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:00,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:18:00,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:18:00,987 INFO L87 Difference]: Start difference. First operand 2069 states and 2818 transitions. Second operand 5 states. [2020-10-14 22:18:04,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:04,739 INFO L93 Difference]: Finished difference Result 5172 states and 7349 transitions. [2020-10-14 22:18:04,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:18:04,745 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-10-14 22:18:04,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:04,764 INFO L225 Difference]: With dead ends: 5172 [2020-10-14 22:18:04,765 INFO L226 Difference]: Without dead ends: 3109 [2020-10-14 22:18:04,770 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 22:18:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2020-10-14 22:18:04,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3103. [2020-10-14 22:18:04,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3103 states. [2020-10-14 22:18:04,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4046 transitions. [2020-10-14 22:18:04,887 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4046 transitions. Word has length 146 [2020-10-14 22:18:04,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:04,889 INFO L479 AbstractCegarLoop]: Abstraction has 3103 states and 4046 transitions. [2020-10-14 22:18:04,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:18:04,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4046 transitions. [2020-10-14 22:18:04,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-14 22:18:04,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:04,901 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:18:04,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:18:04,907 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:04,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:04,907 INFO L82 PathProgramCache]: Analyzing trace with hash -2056962629, now seen corresponding path program 1 times [2020-10-14 22:18:04,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:04,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356212792] [2020-10-14 22:18:04,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:04,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:05,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:05,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:09,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:09,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-10-14 22:18:09,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:18:09,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 22:18:09,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:09,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:09,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:09,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:18:09,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:18:09,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 22:18:10,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:10,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:10,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:10,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:10,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:10,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:10,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:10,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:10,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:10,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:10,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:10,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:10,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:10,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:10,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:10,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:18:10,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:10,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:18:10,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:10,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:18:10,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:10,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:18:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:10,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:10,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:10,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:18:10,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:10,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 22:18:10,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:10,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:18:10,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:18:10,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356212792] [2020-10-14 22:18:10,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:10,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:10,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172369846] [2020-10-14 22:18:10,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:10,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:10,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:10,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:10,749 INFO L87 Difference]: Start difference. First operand 3103 states and 4046 transitions. Second operand 7 states. [2020-10-14 22:18:14,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:14,813 INFO L93 Difference]: Finished difference Result 6252 states and 8194 transitions. [2020-10-14 22:18:14,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:18:14,813 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 284 [2020-10-14 22:18:14,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:14,835 INFO L225 Difference]: With dead ends: 6252 [2020-10-14 22:18:14,835 INFO L226 Difference]: Without dead ends: 3155 [2020-10-14 22:18:14,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 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 22:18:14,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2020-10-14 22:18:14,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 3128. [2020-10-14 22:18:14,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3128 states. [2020-10-14 22:18:14,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 3759 transitions. [2020-10-14 22:18:14,983 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 3759 transitions. Word has length 284 [2020-10-14 22:18:14,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:14,985 INFO L479 AbstractCegarLoop]: Abstraction has 3128 states and 3759 transitions. [2020-10-14 22:18:14,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:14,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 3759 transitions. [2020-10-14 22:18:14,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-10-14 22:18:14,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:14,995 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:18:14,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:18:14,996 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:14,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:14,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1295923574, now seen corresponding path program 1 times [2020-10-14 22:18:14,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:14,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977718664] [2020-10-14 22:18:14,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:15,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:15,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:15,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:16,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:20,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:20,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-14 22:18:20,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:18:20,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 22:18:20,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:20,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:20,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:18:20,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:18:20,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:18:20,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:20,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:20,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:20,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:20,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:20,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:20,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:18:20,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:20,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:20,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:18:20,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:20,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:20,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:20,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:20,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:18:20,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:20,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-14 22:18:20,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:20,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:18:20,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:20,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:18:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:20,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:20,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:20,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:18:20,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:20,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:18:20,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:20,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:18:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:20,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:20,996 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 96 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:18:20,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977718664] [2020-10-14 22:18:20,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:20,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:20,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044847909] [2020-10-14 22:18:20,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:21,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:21,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:21,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:21,001 INFO L87 Difference]: Start difference. First operand 3128 states and 3759 transitions. Second operand 7 states. [2020-10-14 22:18:24,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:24,945 INFO L93 Difference]: Finished difference Result 6994 states and 8374 transitions. [2020-10-14 22:18:24,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:18:24,946 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 373 [2020-10-14 22:18:24,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:24,963 INFO L225 Difference]: With dead ends: 6994 [2020-10-14 22:18:24,964 INFO L226 Difference]: Without dead ends: 3872 [2020-10-14 22:18:24,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:18:24,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2020-10-14 22:18:25,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 3849. [2020-10-14 22:18:25,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3849 states. [2020-10-14 22:18:25,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3849 states to 3849 states and 4551 transitions. [2020-10-14 22:18:25,060 INFO L78 Accepts]: Start accepts. Automaton has 3849 states and 4551 transitions. Word has length 373 [2020-10-14 22:18:25,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:25,060 INFO L479 AbstractCegarLoop]: Abstraction has 3849 states and 4551 transitions. [2020-10-14 22:18:25,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3849 states and 4551 transitions. [2020-10-14 22:18:25,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2020-10-14 22:18:25,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:25,071 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:18:25,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:18:25,071 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:25,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:25,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1226280883, now seen corresponding path program 1 times [2020-10-14 22:18:25,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:25,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983527251] [2020-10-14 22:18:25,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:25,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:25,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:25,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:27,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:28,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:28,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 424 [2020-10-14 22:18:28,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:18:28,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3750 [2020-10-14 22:18:28,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:28,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:28,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:18:28,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:18:28,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 365 [2020-10-14 22:18:28,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:29,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:29,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:29,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:29,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:29,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:29,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:18:29,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:29,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:29,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:18:29,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:29,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:29,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:29,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:29,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:29,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:18:29,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:18:29,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 22:18:29,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:29,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:29,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:18:29,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:18:29,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:18:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:29,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:29,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:29,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-14 22:18:29,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:29,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-14 22:18:29,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:29,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 267 [2020-10-14 22:18:29,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:30,131 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 181 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:18:30,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983527251] [2020-10-14 22:18:30,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:30,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:30,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775340946] [2020-10-14 22:18:30,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:30,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:30,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:30,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:30,136 INFO L87 Difference]: Start difference. First operand 3849 states and 4551 transitions. Second operand 7 states. [2020-10-14 22:18:36,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:36,214 INFO L93 Difference]: Finished difference Result 9158 states and 11289 transitions. [2020-10-14 22:18:36,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:18:36,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 412 [2020-10-14 22:18:36,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:36,235 INFO L225 Difference]: With dead ends: 9158 [2020-10-14 22:18:36,236 INFO L226 Difference]: Without dead ends: 4874 [2020-10-14 22:18:36,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:18:36,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2020-10-14 22:18:36,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4835. [2020-10-14 22:18:36,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4835 states. [2020-10-14 22:18:36,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4835 states to 4835 states and 5208 transitions. [2020-10-14 22:18:36,341 INFO L78 Accepts]: Start accepts. Automaton has 4835 states and 5208 transitions. Word has length 412 [2020-10-14 22:18:36,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:36,342 INFO L479 AbstractCegarLoop]: Abstraction has 4835 states and 5208 transitions. [2020-10-14 22:18:36,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:36,342 INFO L276 IsEmpty]: Start isEmpty. Operand 4835 states and 5208 transitions. [2020-10-14 22:18:36,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-10-14 22:18:36,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:36,352 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:18:36,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:18:36,352 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:36,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:36,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1582226918, now seen corresponding path program 1 times [2020-10-14 22:18:36,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:36,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038734297] [2020-10-14 22:18:36,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:36,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:36,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:38,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:38,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 469 [2020-10-14 22:18:38,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:18:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1576 [2020-10-14 22:18:38,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:38,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:38,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:18:38,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 22:18:38,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:38,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:38,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:38,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:38,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:38,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:38,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:18:38,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:38,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:38,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:38,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:38,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:38,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:38,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:38,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:38,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:38,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:38,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:38,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 22:18:38,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:38,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:18:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:38,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:38,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:38,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:38,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:18:38,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:38,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 22:18:38,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:38,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:38,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:38,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 22:18:38,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 256 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:18:38,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038734297] [2020-10-14 22:18:38,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:38,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:38,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271966081] [2020-10-14 22:18:38,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:38,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:38,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:38,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:38,717 INFO L87 Difference]: Start difference. First operand 4835 states and 5208 transitions. Second operand 7 states. [2020-10-14 22:18:41,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:41,825 INFO L93 Difference]: Finished difference Result 10713 states and 11723 transitions. [2020-10-14 22:18:41,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:18:41,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 457 [2020-10-14 22:18:41,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:41,848 INFO L225 Difference]: With dead ends: 10713 [2020-10-14 22:18:41,848 INFO L226 Difference]: Without dead ends: 6221 [2020-10-14 22:18:41,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:18:41,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6221 states. [2020-10-14 22:18:41,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6221 to 5868. [2020-10-14 22:18:41,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5868 states. [2020-10-14 22:18:41,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5868 states to 5868 states and 6301 transitions. [2020-10-14 22:18:41,970 INFO L78 Accepts]: Start accepts. Automaton has 5868 states and 6301 transitions. Word has length 457 [2020-10-14 22:18:41,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:41,971 INFO L479 AbstractCegarLoop]: Abstraction has 5868 states and 6301 transitions. [2020-10-14 22:18:41,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:41,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5868 states and 6301 transitions. [2020-10-14 22:18:41,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2020-10-14 22:18:41,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:41,991 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:18:41,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:18:41,991 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:41,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:41,992 INFO L82 PathProgramCache]: Analyzing trace with hash 638490555, now seen corresponding path program 1 times [2020-10-14 22:18:41,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:41,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381764364] [2020-10-14 22:18:41,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:42,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:42,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:42,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:43,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:45,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:47,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:47,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 634 [2020-10-14 22:18:47,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:18:47,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 22:18:47,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:47,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:47,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:18:47,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:18:47,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:18:47,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:47,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:47,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:47,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:47,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:47,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:18:47,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:47,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:18:47,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:47,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:47,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:47,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:47,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:47,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:18:47,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:18:47,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-14 22:18:47,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:47,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:47,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:47,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:47,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:18:47,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:47,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:18:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:47,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:47,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:47,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:18:47,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:47,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-14 22:18:47,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:47,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:47,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:18:47,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:48,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:18:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:48,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:48,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:48,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:18:48,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:48,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:18:48,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:48,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:48,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:48,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:18:48,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:48,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:48,493 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 389 proven. 68 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-14 22:18:48,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381764364] [2020-10-14 22:18:48,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:48,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:48,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789139562] [2020-10-14 22:18:48,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:48,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:48,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:48,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:48,496 INFO L87 Difference]: Start difference. First operand 5868 states and 6301 transitions. Second operand 7 states. [2020-10-14 22:18:50,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:50,949 INFO L93 Difference]: Finished difference Result 11416 states and 12289 transitions. [2020-10-14 22:18:50,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:18:50,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 620 [2020-10-14 22:18:50,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:50,971 INFO L225 Difference]: With dead ends: 11416 [2020-10-14 22:18:50,972 INFO L226 Difference]: Without dead ends: 5893 [2020-10-14 22:18:50,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:18:50,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2020-10-14 22:18:51,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5879. [2020-10-14 22:18:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5879 states. [2020-10-14 22:18:51,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 6314 transitions. [2020-10-14 22:18:51,086 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 6314 transitions. Word has length 620 [2020-10-14 22:18:51,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:51,087 INFO L479 AbstractCegarLoop]: Abstraction has 5879 states and 6314 transitions. [2020-10-14 22:18:51,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:51,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 6314 transitions. [2020-10-14 22:18:51,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2020-10-14 22:18:51,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:51,097 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:18:51,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:18:51,097 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:51,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:51,098 INFO L82 PathProgramCache]: Analyzing trace with hash -535884994, now seen corresponding path program 1 times [2020-10-14 22:18:51,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:51,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811010078] [2020-10-14 22:18:51,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:51,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:51,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:53,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:53,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 635 [2020-10-14 22:18:53,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:18:53,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2429 [2020-10-14 22:18:53,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:53,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-14 22:18:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 22:18:53,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:53,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:53,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:53,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:53,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:53,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:53,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:53,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:53,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:53,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:53,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:53,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:53,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:18:53,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:53,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 22:18:53,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:53,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:53,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:18:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:53,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:54,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:54,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:18:54,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:18:54,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:54,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:18:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:54,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:18:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:54,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:54,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:54,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:18:54,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:54,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 22:18:54,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:54,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:54,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 22:18:54,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 462 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 22:18:54,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811010078] [2020-10-14 22:18:54,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:54,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:54,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885690139] [2020-10-14 22:18:54,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:54,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:54,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:54,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:54,599 INFO L87 Difference]: Start difference. First operand 5879 states and 6314 transitions. Second operand 7 states. [2020-10-14 22:18:57,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:57,560 INFO L93 Difference]: Finished difference Result 16534 states and 17992 transitions. [2020-10-14 22:18:57,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:18:57,566 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 621 [2020-10-14 22:18:57,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:57,603 INFO L225 Difference]: With dead ends: 16534 [2020-10-14 22:18:57,604 INFO L226 Difference]: Without dead ends: 11000 [2020-10-14 22:18:57,618 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 22:18:57,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11000 states. [2020-10-14 22:18:57,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11000 to 9646. [2020-10-14 22:18:57,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9646 states. [2020-10-14 22:18:57,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9646 states to 9646 states and 10522 transitions. [2020-10-14 22:18:57,804 INFO L78 Accepts]: Start accepts. Automaton has 9646 states and 10522 transitions. Word has length 621 [2020-10-14 22:18:57,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:57,807 INFO L479 AbstractCegarLoop]: Abstraction has 9646 states and 10522 transitions. [2020-10-14 22:18:57,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:57,807 INFO L276 IsEmpty]: Start isEmpty. Operand 9646 states and 10522 transitions. [2020-10-14 22:18:57,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2020-10-14 22:18:57,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:57,822 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:57,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:18:57,822 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:57,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:57,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1625537934, now seen corresponding path program 1 times [2020-10-14 22:18:57,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:57,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677640533] [2020-10-14 22:18:57,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:58,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:58,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:00,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:03,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:03,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 638 [2020-10-14 22:19:03,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:19:03,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 22:19:03,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:03,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:03,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:19:03,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:19:03,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 332 [2020-10-14 22:19:03,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:03,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:03,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:03,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:03,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:03,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:03,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:03,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:03,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:03,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:03,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:03,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:03,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:03,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:03,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:03,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 22:19:03,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:03,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:03,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:03,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:19:03,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:03,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:03,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:03,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:03,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-14 22:19:03,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:03,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-14 22:19:03,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:03,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:03,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:19:03,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 333 [2020-10-14 22:19:03,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:03,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:19:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:03,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:04,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:04,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 22:19:04,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:04,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 22:19:04,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:04,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:04,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:19:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 22:19:04,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:04,665 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 332 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:19:04,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677640533] [2020-10-14 22:19:04,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:04,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:19:04,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201205340] [2020-10-14 22:19:04,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:19:04,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:04,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:19:04,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:19:04,668 INFO L87 Difference]: Start difference. First operand 9646 states and 10522 transitions. Second operand 8 states. [2020-10-14 22:19:07,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:07,707 INFO L93 Difference]: Finished difference Result 19635 states and 21420 transitions. [2020-10-14 22:19:07,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:19:07,708 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 624 [2020-10-14 22:19:07,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:07,738 INFO L225 Difference]: With dead ends: 19635 [2020-10-14 22:19:07,739 INFO L226 Difference]: Without dead ends: 10334 [2020-10-14 22:19:07,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:19:07,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10334 states. [2020-10-14 22:19:07,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10334 to 9987. [2020-10-14 22:19:07,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9987 states. [2020-10-14 22:19:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9987 states to 9987 states and 10851 transitions. [2020-10-14 22:19:07,957 INFO L78 Accepts]: Start accepts. Automaton has 9987 states and 10851 transitions. Word has length 624 [2020-10-14 22:19:07,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:07,958 INFO L479 AbstractCegarLoop]: Abstraction has 9987 states and 10851 transitions. [2020-10-14 22:19:07,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:19:07,958 INFO L276 IsEmpty]: Start isEmpty. Operand 9987 states and 10851 transitions. [2020-10-14 22:19:07,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2020-10-14 22:19:07,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:07,972 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:19:07,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:19:07,972 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:07,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:07,973 INFO L82 PathProgramCache]: Analyzing trace with hash -2112201601, now seen corresponding path program 1 times [2020-10-14 22:19:07,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:07,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636748379] [2020-10-14 22:19:07,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:09,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 692 [2020-10-14 22:19:09,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:09,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 957 [2020-10-14 22:19:09,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:09,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 637 [2020-10-14 22:19:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 22:19:09,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:09,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:09,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:09,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:09,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:09,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:09,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:09,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:09,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:09,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:09,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:09,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:19:09,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:09,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 22:19:09,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:09,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:09,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:09,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:09,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:09,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:09,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:19:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:09,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:09,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:19:09,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:09,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:19:09,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:09,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:09,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:09,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:19:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:09,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:09,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:09,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:19:09,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:09,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 22:19:09,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:09,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:09,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:09,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:09,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-14 22:19:09,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:09,866 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 147 proven. 3 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2020-10-14 22:19:09,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636748379] [2020-10-14 22:19:09,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:09,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:19:09,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466004204] [2020-10-14 22:19:09,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:19:09,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:09,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:19:09,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:19:09,868 INFO L87 Difference]: Start difference. First operand 9987 states and 10851 transitions. Second operand 5 states. [2020-10-14 22:19:12,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:12,325 INFO L93 Difference]: Finished difference Result 21655 states and 23571 transitions. [2020-10-14 22:19:12,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:19:12,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 678 [2020-10-14 22:19:12,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:12,373 INFO L225 Difference]: With dead ends: 21655 [2020-10-14 22:19:12,374 INFO L226 Difference]: Without dead ends: 12013 [2020-10-14 22:19:12,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:19:12,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12013 states. [2020-10-14 22:19:12,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12013 to 12011. [2020-10-14 22:19:12,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12011 states. [2020-10-14 22:19:12,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12011 states to 12011 states and 12969 transitions. [2020-10-14 22:19:12,609 INFO L78 Accepts]: Start accepts. Automaton has 12011 states and 12969 transitions. Word has length 678 [2020-10-14 22:19:12,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:12,611 INFO L479 AbstractCegarLoop]: Abstraction has 12011 states and 12969 transitions. [2020-10-14 22:19:12,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:19:12,611 INFO L276 IsEmpty]: Start isEmpty. Operand 12011 states and 12969 transitions. [2020-10-14 22:19:12,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1081 [2020-10-14 22:19:12,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:12,646 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:19:12,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:19:12,647 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:12,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:12,647 INFO L82 PathProgramCache]: Analyzing trace with hash 447732183, now seen corresponding path program 1 times [2020-10-14 22:19:12,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:12,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356775885] [2020-10-14 22:19:12,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:13,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:13,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:13,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:14,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:14,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:16,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:17,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:17,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:17,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:18,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:18,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1100 [2020-10-14 22:19:18,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 22:19:18,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5151 [2020-10-14 22:19:18,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:18,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:18,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 22:19:18,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:19:18,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 929 [2020-10-14 22:19:18,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:18,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:18,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:18,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:18,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:18,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:18,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:19:18,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:18,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:18,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:18,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:18,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:19:18,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:18,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:18,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:18,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:18,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:18,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:18,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:18,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 22:19:18,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:18,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:18,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:19:18,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:18,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:18,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:18,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:18,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:19:18,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:18,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-10-14 22:19:18,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:18,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:19:18,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:18,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:19:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:18,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:19,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:19,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:19,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 22:19:19,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:19,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 22:19:19,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:19,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:19,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:19,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:19,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 22:19:19,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:19,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 652 [2020-10-14 22:19:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:19,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:19,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:19,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:19,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:19:19,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:19,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 22:19:19,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:19,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 22:19:19,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2020-10-14 22:19:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:19,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:19,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:19,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:19:19,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:19,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-14 22:19:19,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:19,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-14 22:19:19,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:19,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 923 [2020-10-14 22:19:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:19,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:19,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:19,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:19:19,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:19,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:19:19,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:19,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:19,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:19,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:19:19,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:19,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2288 backedges. 1073 proven. 279 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2020-10-14 22:19:20,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356775885] [2020-10-14 22:19:20,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:20,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:19:20,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073020907] [2020-10-14 22:19:20,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:19:20,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:20,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:19:20,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:19:20,401 INFO L87 Difference]: Start difference. First operand 12011 states and 12969 transitions. Second operand 9 states. [2020-10-14 22:19:23,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:23,543 INFO L93 Difference]: Finished difference Result 24070 states and 26102 transitions. [2020-10-14 22:19:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:23,544 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1080 [2020-10-14 22:19:23,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:23,580 INFO L225 Difference]: With dead ends: 24070 [2020-10-14 22:19:23,581 INFO L226 Difference]: Without dead ends: 12061 [2020-10-14 22:19:23,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:19:23,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12061 states. [2020-10-14 22:19:23,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12061 to 12009. [2020-10-14 22:19:23,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12009 states. [2020-10-14 22:19:23,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12009 states to 12009 states and 12956 transitions. [2020-10-14 22:19:23,782 INFO L78 Accepts]: Start accepts. Automaton has 12009 states and 12956 transitions. Word has length 1080 [2020-10-14 22:19:23,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:23,783 INFO L479 AbstractCegarLoop]: Abstraction has 12009 states and 12956 transitions. [2020-10-14 22:19:23,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:19:23,784 INFO L276 IsEmpty]: Start isEmpty. Operand 12009 states and 12956 transitions. [2020-10-14 22:19:23,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1113 [2020-10-14 22:19:23,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:23,813 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 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 22:19:23,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:19:23,813 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:23,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:23,814 INFO L82 PathProgramCache]: Analyzing trace with hash -2066914805, now seen corresponding path program 1 times [2020-10-14 22:19:23,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:23,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760695072] [2020-10-14 22:19:23,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:24,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:24,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:26,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:28,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:29,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:29,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1134 [2020-10-14 22:19:29,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:19:29,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-14 22:19:29,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:29,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:29,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:29,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 677 [2020-10-14 22:19:29,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 22:19:29,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:29,366 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-14 22:19:29,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:29,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:29,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:29,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:29,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:29,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:19:29,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:29,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:29,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:29,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:29,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:29,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:29,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:29,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:29,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:29,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:29,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:19:29,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:29,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:29,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:29,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:29,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:29,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:29,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:19:29,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:29,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:19:29,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:29,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:29,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:29,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:19:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:29,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:29,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:29,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:19:29,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:29,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:19:29,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:29,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:29,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:29,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:19:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:29,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:29,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:29,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:19:29,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:29,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:19:29,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:29,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:19:29,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:29,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:19:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:29,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:29,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:29,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:19:29,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:29,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 22:19:29,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:29,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:19:29,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:29,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2020-10-14 22:19:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:29,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:29,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:29,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:19:29,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:29,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:19:29,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:29,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:29,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:19:29,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:29,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:29,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2020-10-14 22:19:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:29,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:29,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:29,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:19:29,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:29,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:19:29,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:29,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:29,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:29,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:19:29,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:29,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:30,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2759 backedges. 858 proven. 248 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2020-10-14 22:19:30,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760695072] [2020-10-14 22:19:30,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:30,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:30,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968700576] [2020-10-14 22:19:30,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:30,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:30,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:30,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:30,600 INFO L87 Difference]: Start difference. First operand 12009 states and 12956 transitions. Second operand 7 states. [2020-10-14 22:19:33,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:33,976 INFO L93 Difference]: Finished difference Result 26401 states and 28696 transitions. [2020-10-14 22:19:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:33,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1112 [2020-10-14 22:19:33,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:34,016 INFO L225 Difference]: With dead ends: 26401 [2020-10-14 22:19:34,017 INFO L226 Difference]: Without dead ends: 14737 [2020-10-14 22:19:34,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:19:34,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14737 states. [2020-10-14 22:19:34,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14737 to 14374. [2020-10-14 22:19:34,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14374 states. [2020-10-14 22:19:34,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14374 states to 14374 states and 15406 transitions. [2020-10-14 22:19:34,261 INFO L78 Accepts]: Start accepts. Automaton has 14374 states and 15406 transitions. Word has length 1112 [2020-10-14 22:19:34,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:34,262 INFO L479 AbstractCegarLoop]: Abstraction has 14374 states and 15406 transitions. [2020-10-14 22:19:34,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:34,263 INFO L276 IsEmpty]: Start isEmpty. Operand 14374 states and 15406 transitions. [2020-10-14 22:19:34,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1191 [2020-10-14 22:19:34,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:34,308 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, 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, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 22:19:34,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:19:34,309 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:34,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:34,310 INFO L82 PathProgramCache]: Analyzing trace with hash -713785525, now seen corresponding path program 1 times [2020-10-14 22:19:34,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:34,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027180292] [2020-10-14 22:19:34,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:34,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:34,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:35,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:35,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:39,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:39,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1212 [2020-10-14 22:19:39,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:19:39,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 22:19:39,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:39,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 793 [2020-10-14 22:19:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:19:39,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:39,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:39,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:39,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:39,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:39,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:39,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:39,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:39,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:39,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:39,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:39,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:39,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:39,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:39,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:39,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:39,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:19:39,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:39,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:39,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:39,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:39,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:39,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:39,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:39,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:39,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:39,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:19:39,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:39,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:19:39,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:39,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:39,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:39,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:19:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:39,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:39,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:39,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:19:39,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:39,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:19:39,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:39,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:39,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:19:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:39,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:39,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:39,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:19:39,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:39,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:19:39,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:39,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:39,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:40,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:19:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:40,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:40,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:40,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:19:40,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:40,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:19:40,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:40,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:40,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:40,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:40,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:19:40,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:40,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 783 [2020-10-14 22:19:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:40,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:40,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:40,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:19:40,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:40,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-14 22:19:40,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:40,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:40,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:40,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:40,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:19:40,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:40,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1033 [2020-10-14 22:19:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:40,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:40,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:40,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:19:40,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:40,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:19:40,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:40,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:19:40,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:40,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2832 backedges. 1136 proven. 109 refuted. 0 times theorem prover too weak. 1587 trivial. 0 not checked. [2020-10-14 22:19:41,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027180292] [2020-10-14 22:19:41,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:41,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:41,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134115193] [2020-10-14 22:19:41,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:41,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:41,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:41,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:41,442 INFO L87 Difference]: Start difference. First operand 14374 states and 15406 transitions. Second operand 7 states. [2020-10-14 22:19:44,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:44,785 INFO L93 Difference]: Finished difference Result 30435 states and 32637 transitions. [2020-10-14 22:19:44,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:19:44,786 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1190 [2020-10-14 22:19:44,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:44,825 INFO L225 Difference]: With dead ends: 30435 [2020-10-14 22:19:44,825 INFO L226 Difference]: Without dead ends: 16406 [2020-10-14 22:19:44,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 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 22:19:44,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16406 states. [2020-10-14 22:19:45,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16406 to 16402. [2020-10-14 22:19:45,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16402 states. [2020-10-14 22:19:45,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16402 states to 16402 states and 17517 transitions. [2020-10-14 22:19:45,095 INFO L78 Accepts]: Start accepts. Automaton has 16402 states and 17517 transitions. Word has length 1190 [2020-10-14 22:19:45,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:45,096 INFO L479 AbstractCegarLoop]: Abstraction has 16402 states and 17517 transitions. [2020-10-14 22:19:45,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:45,096 INFO L276 IsEmpty]: Start isEmpty. Operand 16402 states and 17517 transitions. [2020-10-14 22:19:45,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1223 [2020-10-14 22:19:45,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:45,132 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 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 22:19:45,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:19:45,133 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:45,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:45,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1329056877, now seen corresponding path program 1 times [2020-10-14 22:19:45,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:45,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296100256] [2020-10-14 22:19:45,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:45,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:45,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:47,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:47,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:48,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:50,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:50,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1244 [2020-10-14 22:19:50,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:19:50,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-14 22:19:50,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:50,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:50,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:19:50,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 887 [2020-10-14 22:19:50,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 356 [2020-10-14 22:19:50,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:50,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:50,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:50,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:50,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:50,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:50,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:19:50,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:50,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:50,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:50,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:50,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:50,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:50,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:50,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:50,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:19:50,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:50,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:50,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:50,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:50,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:50,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:50,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:50,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:50,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:50,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:19:50,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:50,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:19:50,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:50,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:50,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:50,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:50,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:50,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:50,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:19:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:50,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:50,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:50,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:19:50,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:50,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:19:50,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:50,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:50,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:50,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:50,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:50,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:50,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:19:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:50,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:50,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:50,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:19:50,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:19:50,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:50,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:50,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:19:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:50,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:50,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:50,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:19:50,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:50,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:19:50,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:50,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:50,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:50,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:50,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 22:19:50,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:50,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-14 22:19:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:50,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:51,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:51,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:51,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:19:51,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:51,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 22:19:51,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:51,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:51,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:51,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:51,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 22:19:51,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:51,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-14 22:19:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:51,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:51,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:51,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:51,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:19:51,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:51,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 22:19:51,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:51,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:51,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:51,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:51,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:19:51,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:52,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 389 proven. 7 refuted. 0 times theorem prover too weak. 2681 trivial. 0 not checked. [2020-10-14 22:19:52,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296100256] [2020-10-14 22:19:52,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:52,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:19:52,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577544229] [2020-10-14 22:19:52,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:19:52,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:52,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:19:52,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:19:52,009 INFO L87 Difference]: Start difference. First operand 16402 states and 17517 transitions. Second operand 5 states. [2020-10-14 22:19:54,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:54,658 INFO L93 Difference]: Finished difference Result 32459 states and 34686 transitions. [2020-10-14 22:19:54,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:19:54,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1222 [2020-10-14 22:19:54,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:54,698 INFO L225 Difference]: With dead ends: 32459 [2020-10-14 22:19:54,698 INFO L226 Difference]: Without dead ends: 16402 [2020-10-14 22:19:54,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:19:54,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16402 states. [2020-10-14 22:19:54,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16402 to 16402. [2020-10-14 22:19:54,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16402 states. [2020-10-14 22:19:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16402 states to 16402 states and 17291 transitions. [2020-10-14 22:19:54,971 INFO L78 Accepts]: Start accepts. Automaton has 16402 states and 17291 transitions. Word has length 1222 [2020-10-14 22:19:54,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:54,973 INFO L479 AbstractCegarLoop]: Abstraction has 16402 states and 17291 transitions. [2020-10-14 22:19:54,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:19:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 16402 states and 17291 transitions. [2020-10-14 22:19:55,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1514 [2020-10-14 22:19:55,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:55,026 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:19:55,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:19:55,026 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:55,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:55,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1652782806, now seen corresponding path program 1 times [2020-10-14 22:19:55,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:55,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981973020] [2020-10-14 22:19:55,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:55,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:55,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:56,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:00,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:00,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1537 [2020-10-14 22:20:00,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:20:00,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5177 [2020-10-14 22:20:00,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:00,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-14 22:20:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:20:00,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:00,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:00,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:00,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:00,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:00,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:00,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:20:00,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:00,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:00,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:00,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:00,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:00,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:00,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:20:00,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:00,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:20:00,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:00,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:00,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:00,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:00,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:00,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:00,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:20:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:00,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:00,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:00,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:20:00,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:00,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:20:00,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:00,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:00,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:00,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:20:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:00,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:00,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:00,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:00,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:00,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:20:00,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:00,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:00,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:00,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:20:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:01,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:01,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:01,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:20:01,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:01,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:20:01,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:01,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:01,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:01,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:01,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:20:01,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:01,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:20:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:01,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:01,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:01,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:20:01,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:01,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-14 22:20:01,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:01,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:20:01,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:01,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-14 22:20:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:01,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:01,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:01,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:20:01,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:01,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:20:01,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:01,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:01,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:01,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 22:20:01,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:01,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:01,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:20:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:01,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:01,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:01,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:20:01,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:20:01,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:01,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:01,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:01,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1374 [2020-10-14 22:20:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:01,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:01,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:01,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:20:01,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:01,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:20:01,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:01,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:01,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:01,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:20:01,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:01,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:03,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3733 backedges. 1157 proven. 361 refuted. 0 times theorem prover too weak. 2215 trivial. 0 not checked. [2020-10-14 22:20:03,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981973020] [2020-10-14 22:20:03,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:03,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:03,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182229909] [2020-10-14 22:20:03,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:03,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:03,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:03,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:03,148 INFO L87 Difference]: Start difference. First operand 16402 states and 17291 transitions. Second operand 7 states. [2020-10-14 22:20:06,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:06,263 INFO L93 Difference]: Finished difference Result 32467 states and 34251 transitions. [2020-10-14 22:20:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:20:06,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1513 [2020-10-14 22:20:06,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:06,300 INFO L225 Difference]: With dead ends: 32467 [2020-10-14 22:20:06,300 INFO L226 Difference]: Without dead ends: 16410 [2020-10-14 22:20:06,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:20:06,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16410 states. [2020-10-14 22:20:06,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16410 to 16402. [2020-10-14 22:20:06,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16402 states. [2020-10-14 22:20:06,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16402 states to 16402 states and 17283 transitions. [2020-10-14 22:20:06,560 INFO L78 Accepts]: Start accepts. Automaton has 16402 states and 17283 transitions. Word has length 1513 [2020-10-14 22:20:06,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:06,562 INFO L479 AbstractCegarLoop]: Abstraction has 16402 states and 17283 transitions. [2020-10-14 22:20:06,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 16402 states and 17283 transitions. [2020-10-14 22:20:06,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1518 [2020-10-14 22:20:06,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:06,603 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:20:06,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:20:06,604 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:06,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:06,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1307029058, now seen corresponding path program 1 times [2020-10-14 22:20:06,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:06,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292450983] [2020-10-14 22:20:06,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:07,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:07,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:10,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:10,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:12,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:12,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1543 [2020-10-14 22:20:12,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:20:12,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5100 [2020-10-14 22:20:12,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:12,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:12,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:20:12,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1189 [2020-10-14 22:20:12,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 297 [2020-10-14 22:20:12,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:12,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:12,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:12,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:12,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:12,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:12,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:20:12,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:12,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:12,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:12,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:12,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:12,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:12,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:12,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:12,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:12,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:20:12,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:12,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:20:12,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:12,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:12,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:12,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:20:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:12,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:12,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:12,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:20:12,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:12,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:20:12,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:12,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:12,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:12,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:12,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:12,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:20:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:12,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:12,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:12,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:12,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:12,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:20:12,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:12,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:12,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:12,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:20:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:12,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:12,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:12,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:20:12,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:12,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:20:12,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:12,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:12,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:12,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:20:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:12,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:12,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:12,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:20:12,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:12,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:20:12,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:12,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:12,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-14 22:20:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:12,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:12,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:12,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:20:12,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:20:12,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:12,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:12,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:12,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-14 22:20:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:12,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:12,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:12,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:20:12,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:12,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:20:12,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:12,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:20:12,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:12,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1175 [2020-10-14 22:20:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:12,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:13,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:13,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:20:13,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-14 22:20:13,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:13,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:20:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 298 [2020-10-14 22:20:13,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:13,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:20:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:13,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:13,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:13,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:20:13,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:13,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:20:13,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:13,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:13,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:20:13,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:13,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 22:20:13,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:14,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4292 backedges. 1560 proven. 2 refuted. 0 times theorem prover too weak. 2730 trivial. 0 not checked. [2020-10-14 22:20:14,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292450983] [2020-10-14 22:20:14,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:14,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:14,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167931655] [2020-10-14 22:20:14,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:14,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:14,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:14,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:14,648 INFO L87 Difference]: Start difference. First operand 16402 states and 17283 transitions. Second operand 7 states. [2020-10-14 22:20:18,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:18,113 INFO L93 Difference]: Finished difference Result 33139 states and 34963 transitions. [2020-10-14 22:20:18,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:20:18,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1517 [2020-10-14 22:20:18,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:18,151 INFO L225 Difference]: With dead ends: 33139 [2020-10-14 22:20:18,152 INFO L226 Difference]: Without dead ends: 16735 [2020-10-14 22:20:18,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:20:18,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16735 states. [2020-10-14 22:20:18,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16735 to 16729. [2020-10-14 22:20:18,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16729 states. [2020-10-14 22:20:18,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16729 states to 16729 states and 17585 transitions. [2020-10-14 22:20:18,419 INFO L78 Accepts]: Start accepts. Automaton has 16729 states and 17585 transitions. Word has length 1517 [2020-10-14 22:20:18,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:18,421 INFO L479 AbstractCegarLoop]: Abstraction has 16729 states and 17585 transitions. [2020-10-14 22:20:18,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 16729 states and 17585 transitions. [2020-10-14 22:20:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1785 [2020-10-14 22:20:18,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:18,472 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:18,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:20:18,472 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:18,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:18,473 INFO L82 PathProgramCache]: Analyzing trace with hash -483253469, now seen corresponding path program 1 times [2020-10-14 22:20:18,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:18,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786191238] [2020-10-14 22:20:18,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:18,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:22,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:23,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1812 [2020-10-14 22:20:23,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:20:23,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5105 [2020-10-14 22:20:23,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:23,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1077 [2020-10-14 22:20:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:20:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:24,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:20:24,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:24,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:24,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:24,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:20:24,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:20:24,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:24,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:20:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:20:24,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:20:24,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:24,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:24,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:24,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:20:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:24,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:20:24,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:24,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:24,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:24,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:20:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:20:24,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:20:24,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:24,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:24,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:24,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:20:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:20:24,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:20:24,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:24,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:24,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:24,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-14 22:20:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:20:24,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:20:24,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 22:20:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:24,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-14 22:20:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:20:24,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-14 22:20:24,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:24,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:24,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:20:24,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:25,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1338 [2020-10-14 22:20:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:25,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:25,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:25,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:20:25,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:25,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 22:20:25,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:25,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 22:20:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:25,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:25,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:20:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:25,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:25,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:25,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:20:25,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:25,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:20:25,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:25,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:25,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:25,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:25,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:25,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:25,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1645 [2020-10-14 22:20:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:25,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:25,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:25,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:20:25,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:25,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:20:25,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:25,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:25,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:25,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:20:25,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:25,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5654 backedges. 1544 proven. 361 refuted. 0 times theorem prover too weak. 3749 trivial. 0 not checked. [2020-10-14 22:20:26,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786191238] [2020-10-14 22:20:26,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:26,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:26,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153433125] [2020-10-14 22:20:26,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:26,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:26,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:26,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:26,858 INFO L87 Difference]: Start difference. First operand 16729 states and 17585 transitions. Second operand 7 states. [2020-10-14 22:20:30,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:30,055 INFO L93 Difference]: Finished difference Result 35493 states and 37465 transitions. [2020-10-14 22:20:30,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:20:30,056 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1784 [2020-10-14 22:20:30,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:30,090 INFO L225 Difference]: With dead ends: 35493 [2020-10-14 22:20:30,090 INFO L226 Difference]: Without dead ends: 19109 [2020-10-14 22:20:30,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 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 22:20:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19109 states. [2020-10-14 22:20:30,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19109 to 18427. [2020-10-14 22:20:30,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18427 states. [2020-10-14 22:20:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18427 states to 18427 states and 19460 transitions. [2020-10-14 22:20:30,351 INFO L78 Accepts]: Start accepts. Automaton has 18427 states and 19460 transitions. Word has length 1784 [2020-10-14 22:20:30,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:30,352 INFO L479 AbstractCegarLoop]: Abstraction has 18427 states and 19460 transitions. [2020-10-14 22:20:30,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:30,352 INFO L276 IsEmpty]: Start isEmpty. Operand 18427 states and 19460 transitions. [2020-10-14 22:20:30,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1790 [2020-10-14 22:20:30,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:30,396 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:20:30,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:20:30,397 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:30,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:30,398 INFO L82 PathProgramCache]: Analyzing trace with hash -185664482, now seen corresponding path program 1 times [2020-10-14 22:20:30,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:30,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992067151] [2020-10-14 22:20:30,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:31,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:31,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:31,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:35,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:35,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1817 [2020-10-14 22:20:35,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:20:35,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5144 [2020-10-14 22:20:35,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:35,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:35,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:20:35,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 938 [2020-10-14 22:20:35,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 420 [2020-10-14 22:20:35,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:36,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:36,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:36,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:36,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:36,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:36,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:20:36,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:36,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:36,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:36,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:36,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:36,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:36,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:36,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:36,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:20:36,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:36,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 22:20:36,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:36,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:36,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:36,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:20:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:36,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:36,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:36,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:20:36,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:20:36,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:36,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:36,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:36,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:20:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:36,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:36,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:36,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:20:36,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:20:36,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:36,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:36,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:36,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:36,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-14 22:20:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:36,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:36,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:36,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 22:20:36,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:36,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:20:36,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:36,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:36,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:36,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:36,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:36,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:36,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:20:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:36,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:36,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:36,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:20:36,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:36,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 22:20:36,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:36,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:36,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:20:36,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:36,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2020-10-14 22:20:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:36,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:37,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:37,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:20:37,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:37,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 22:20:37,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:37,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 22:20:37,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:37,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-14 22:20:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:37,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:37,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:37,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:20:37,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:37,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-10-14 22:20:37,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:37,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:37,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:37,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:37,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:20:37,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:37,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1343 [2020-10-14 22:20:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:37,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:38,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:38,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:20:38,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:38,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 22:20:38,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:38,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 22:20:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:38,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:38,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:20:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:38,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:38,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:38,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:20:38,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:20:38,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:38,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:38,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:38,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1650 [2020-10-14 22:20:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:38,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:38,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:38,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:20:38,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:38,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:20:38,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:38,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:20:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:40,336 INFO L134 CoverageAnalysis]: Checked inductivity of 5843 backedges. 2108 proven. 593 refuted. 0 times theorem prover too weak. 3142 trivial. 0 not checked. [2020-10-14 22:20:40,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992067151] [2020-10-14 22:20:40,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:40,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:20:40,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247546683] [2020-10-14 22:20:40,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:20:40,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:40,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:20:40,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:20:40,339 INFO L87 Difference]: Start difference. First operand 18427 states and 19460 transitions. Second operand 8 states. [2020-10-14 22:20:43,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:43,755 INFO L93 Difference]: Finished difference Result 37191 states and 39290 transitions. [2020-10-14 22:20:43,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:20:43,756 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1789 [2020-10-14 22:20:43,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:43,791 INFO L225 Difference]: With dead ends: 37191 [2020-10-14 22:20:43,791 INFO L226 Difference]: Without dead ends: 19109 [2020-10-14 22:20:43,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:20:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19109 states. [2020-10-14 22:20:44,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19109 to 19105. [2020-10-14 22:20:44,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19105 states. [2020-10-14 22:20:44,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19105 states to 19105 states and 20158 transitions. [2020-10-14 22:20:44,059 INFO L78 Accepts]: Start accepts. Automaton has 19105 states and 20158 transitions. Word has length 1789 [2020-10-14 22:20:44,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:44,060 INFO L479 AbstractCegarLoop]: Abstraction has 19105 states and 20158 transitions. [2020-10-14 22:20:44,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:20:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 19105 states and 20158 transitions. [2020-10-14 22:20:44,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1792 [2020-10-14 22:20:44,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:44,101 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:20:44,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:20:44,102 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:44,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:44,103 INFO L82 PathProgramCache]: Analyzing trace with hash 2031753802, now seen corresponding path program 1 times [2020-10-14 22:20:44,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:44,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715551411] [2020-10-14 22:20:44,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:44,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:44,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:45,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:45,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:47,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:49,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:49,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1819 [2020-10-14 22:20:49,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:20:49,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-14 22:20:49,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:49,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:49,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:49,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 676 [2020-10-14 22:20:49,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:20:49,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:49,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:49,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:49,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:49,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:49,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:49,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:20:49,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:49,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:49,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:49,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:49,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:49,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:49,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:20:49,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:49,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:20:49,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:49,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:49,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:49,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:49,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:49,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:49,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:20:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:49,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:49,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:49,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:20:49,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:49,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:20:49,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:49,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:49,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:49,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:49,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:49,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:49,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:20:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:49,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:49,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:49,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:49,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:49,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:20:49,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:49,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:49,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:49,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:49,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:49,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:49,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:20:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:49,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:49,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:49,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:20:49,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:49,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:20:49,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:49,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:49,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:49,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:49,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:20:49,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:49,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:20:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:49,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:50,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:50,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:20:50,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:50,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-14 22:20:50,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:50,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:20:50,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:50,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-14 22:20:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:50,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:50,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:50,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:20:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:20:50,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:50,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:20:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:50,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1072 [2020-10-14 22:20:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:50,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:50,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:50,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:20:50,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:50,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:20:50,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:50,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:50,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:50,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:20:50,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:50,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:50,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2020-10-14 22:20:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:50,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:50,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:50,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:20:50,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:50,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 22:20:50,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:50,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:50,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:50,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 22:20:50,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:50,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:51,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:20:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:51,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:51,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:51,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:20:51,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:51,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:20:51,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:51,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:51,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:51,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:51,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:51,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:51,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1652 [2020-10-14 22:20:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:51,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:51,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:51,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:20:51,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:51,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:20:51,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:51,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:20:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:51,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 5518 backedges. 1159 proven. 748 refuted. 0 times theorem prover too weak. 3611 trivial. 0 not checked. [2020-10-14 22:20:53,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715551411] [2020-10-14 22:20:53,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:53,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:53,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727030136] [2020-10-14 22:20:53,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:53,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:53,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:53,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:53,414 INFO L87 Difference]: Start difference. First operand 19105 states and 20158 transitions. Second operand 7 states. [2020-10-14 22:20:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:57,471 INFO L93 Difference]: Finished difference Result 39228 states and 41456 transitions. [2020-10-14 22:20:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:20:57,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1791 [2020-10-14 22:20:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:57,528 INFO L225 Difference]: With dead ends: 39228 [2020-10-14 22:20:57,528 INFO L226 Difference]: Without dead ends: 20468 [2020-10-14 22:20:57,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:20:57,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20468 states. [2020-10-14 22:20:57,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20468 to 20468. [2020-10-14 22:20:57,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20468 states. [2020-10-14 22:20:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20468 states to 20468 states and 21578 transitions. [2020-10-14 22:20:57,841 INFO L78 Accepts]: Start accepts. Automaton has 20468 states and 21578 transitions. Word has length 1791 [2020-10-14 22:20:57,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:57,842 INFO L479 AbstractCegarLoop]: Abstraction has 20468 states and 21578 transitions. [2020-10-14 22:20:57,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:57,843 INFO L276 IsEmpty]: Start isEmpty. Operand 20468 states and 21578 transitions. [2020-10-14 22:20:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1795 [2020-10-14 22:20:57,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:57,895 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:20:57,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 22:20:57,895 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:57,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:57,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1726617091, now seen corresponding path program 1 times [2020-10-14 22:20:57,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:57,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195937547] [2020-10-14 22:20:57,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:58,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:58,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:58,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:58,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:03,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:03,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1822 [2020-10-14 22:21:03,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:21:03,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-14 22:21:03,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:03,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 679 [2020-10-14 22:21:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:21:03,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:03,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:03,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:03,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:03,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:03,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:03,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:21:03,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:03,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:03,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:03,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:03,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:03,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:03,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:03,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:03,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:03,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:03,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:03,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:21:03,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:03,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:03,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:03,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:03,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:03,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:03,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:03,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:03,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:03,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:21:03,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:03,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:21:03,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:03,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:03,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:03,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:03,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:21:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:03,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:03,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:03,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:21:03,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:03,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:21:03,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:03,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:03,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:03,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:21:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:03,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:03,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:03,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:21:03,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:03,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:21:03,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:03,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:03,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:03,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:03,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:21:03,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:03,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-14 22:21:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:03,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:04,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:04,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:21:04,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:04,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-14 22:21:04,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:04,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:04,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:04,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:04,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:21:04,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:04,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2020-10-14 22:21:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:04,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:04,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:04,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:21:04,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:04,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:21:04,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:04,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:21:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:04,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:04,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1075 [2020-10-14 22:21:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:04,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:04,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:04,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:21:04,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:04,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:21:04,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:04,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:21:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:04,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:04,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1348 [2020-10-14 22:21:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:04,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:04,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:04,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:21:04,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:04,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:21:04,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:04,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:04,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:04,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 22:21:04,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:04,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:04,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:04,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:04,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:04,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:21:04,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:04,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:21:04,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:04,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:04,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:04,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:04,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:04,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1655 [2020-10-14 22:21:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:21:05,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:21:05,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:21:05,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:05,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:06,808 INFO L134 CoverageAnalysis]: Checked inductivity of 5534 backedges. 1162 proven. 748 refuted. 0 times theorem prover too weak. 3624 trivial. 0 not checked. [2020-10-14 22:21:06,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195937547] [2020-10-14 22:21:06,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:06,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:06,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770245466] [2020-10-14 22:21:06,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:06,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:06,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:06,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:06,811 INFO L87 Difference]: Start difference. First operand 20468 states and 21578 transitions. Second operand 7 states. [2020-10-14 22:21:10,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:10,482 INFO L93 Difference]: Finished difference Result 41616 states and 43881 transitions. [2020-10-14 22:21:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:21:10,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1794 [2020-10-14 22:21:10,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:10,515 INFO L225 Difference]: With dead ends: 41616 [2020-10-14 22:21:10,515 INFO L226 Difference]: Without dead ends: 21493 [2020-10-14 22:21:10,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:10,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21493 states. [2020-10-14 22:21:10,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21493 to 21142. [2020-10-14 22:21:10,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21142 states. [2020-10-14 22:21:10,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21142 states to 21142 states and 22268 transitions. [2020-10-14 22:21:10,801 INFO L78 Accepts]: Start accepts. Automaton has 21142 states and 22268 transitions. Word has length 1794 [2020-10-14 22:21:10,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:10,802 INFO L479 AbstractCegarLoop]: Abstraction has 21142 states and 22268 transitions. [2020-10-14 22:21:10,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:10,802 INFO L276 IsEmpty]: Start isEmpty. Operand 21142 states and 22268 transitions. [2020-10-14 22:21:10,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1820 [2020-10-14 22:21:10,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:10,835 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:10,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 22:21:10,835 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:10,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:10,836 INFO L82 PathProgramCache]: Analyzing trace with hash 669158466, now seen corresponding path program 1 times [2020-10-14 22:21:10,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:10,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118258935] [2020-10-14 22:21:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:11,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:11,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:11,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:11,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:12,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1847 [2020-10-14 22:21:16,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:21:16,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-14 22:21:16,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:16,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 704 [2020-10-14 22:21:16,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:21:16,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:16,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:21:16,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:16,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:16,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 22:21:16,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:16,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:16,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:16,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:21:16,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 22:21:16,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:16,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:16,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:16,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:21:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:21:16,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:21:16,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:16,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:16,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:16,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:21:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 22:21:16,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:21:16,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 22:21:16,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 696 [2020-10-14 22:21:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:21:17,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-14 22:21:17,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:17,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:17,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:21:17,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 958 [2020-10-14 22:21:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:21:17,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:21:17,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:21:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1100 [2020-10-14 22:21:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:21:17,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:21:17,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:21:17,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1373 [2020-10-14 22:21:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:21:17,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 22:21:17,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 22:21:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:17,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:17,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:17,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:21:17,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:17,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:21:17,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:17,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:17,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:17,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:17,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:17,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:18,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1680 [2020-10-14 22:21:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:18,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:18,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:18,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:21:18,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:18,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:21:18,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:18,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:18,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:18,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:21:18,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:18,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0