/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:42:15,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:42:15,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:42:15,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:42:15,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:42:15,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:42:15,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:42:15,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:42:15,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:42:15,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:42:15,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:42:15,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:42:15,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:42:15,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:42:15,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:42:15,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:42:15,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:42:15,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:42:15,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:42:15,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:42:15,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:42:15,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:42:15,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:42:15,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:42:15,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:42:15,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:42:15,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:42:15,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:42:15,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:42:15,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:42:15,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:42:15,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:42:15,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:42:15,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:42:15,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:42:15,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:42:15,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:42:15,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:42:15,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:42:15,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:42:15,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:42:15,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 03:42:15,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:42:15,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:42:15,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:42:15,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:42:15,237 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:42:15,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:42:15,237 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:42:15,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:42:15,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:42:15,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:42:15,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:42:15,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:42:15,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:42:15,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:42:15,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:42:15,240 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:42:15,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:42:15,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:42:15,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:42:15,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:42:15,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:42:15,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:42:15,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:42:15,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:42:15,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:42:15,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:42:15,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:42:15,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:42:15,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:42:15,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:42:15,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:42:15,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:42:15,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:42:15,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:42:15,574 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:42:15,576 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label11.c [2020-10-14 03:42:15,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e37d470b/36442067077e4c9dab1b61b331f652d8/FLAGafa9add56 [2020-10-14 03:42:16,323 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:42:16,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label11.c [2020-10-14 03:42:16,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e37d470b/36442067077e4c9dab1b61b331f652d8/FLAGafa9add56 [2020-10-14 03:42:16,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e37d470b/36442067077e4c9dab1b61b331f652d8 [2020-10-14 03:42:16,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:42:16,505 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:42:16,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:42:16,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:42:16,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:42:16,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:42:16" (1/1) ... [2020-10-14 03:42:16,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@390ac93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:16, skipping insertion in model container [2020-10-14 03:42:16,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:42:16" (1/1) ... [2020-10-14 03:42:16,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:42:16,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:42:17,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:42:17,739 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:42:17,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:42:18,000 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:42:18,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:18 WrapperNode [2020-10-14 03:42:18,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:42:18,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:42:18,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:42:18,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:42:18,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:18" (1/1) ... [2020-10-14 03:42:18,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:18" (1/1) ... [2020-10-14 03:42:18,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:18" (1/1) ... [2020-10-14 03:42:18,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:18" (1/1) ... [2020-10-14 03:42:18,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:18" (1/1) ... [2020-10-14 03:42:18,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:18" (1/1) ... [2020-10-14 03:42:18,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:18" (1/1) ... [2020-10-14 03:42:18,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:42:18,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:42:18,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:42:18,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:42:18,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:42:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:42:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:42:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:42:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:42:18,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:42:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:42:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:42:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:42:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:42:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:42:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:42:18,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:42:18,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:42:20,787 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:42:20,788 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:42:20,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:42:20 BoogieIcfgContainer [2020-10-14 03:42:20,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:42:20,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:42:20,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:42:20,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:42:20,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:42:16" (1/3) ... [2020-10-14 03:42:20,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c23934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:42:20, skipping insertion in model container [2020-10-14 03:42:20,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:18" (2/3) ... [2020-10-14 03:42:20,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c23934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:42:20, skipping insertion in model container [2020-10-14 03:42:20,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:42:20" (3/3) ... [2020-10-14 03:42:20,808 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label11.c [2020-10-14 03:42:20,820 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:42:20,829 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:42:20,845 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:42:20,875 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:42:20,875 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:42:20,876 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:42:20,876 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:42:20,876 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:42:20,876 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:42:20,876 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:42:20,876 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:42:20,904 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:42:20,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 03:42:20,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:20,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:42:20,915 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:20,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:20,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1003051062, now seen corresponding path program 1 times [2020-10-14 03:42:20,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:20,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943551375] [2020-10-14 03:42:20,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:21,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:21,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:21,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 03:42:21,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:21,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-10-14 03:42:21,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:21,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:21,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:42:21,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:42:21,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 03:42:21,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:42:21,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:21,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:21,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:21,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:21,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:21,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:42:21,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:21,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:21,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:42:21,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:21,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:42:21,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943551375] [2020-10-14 03:42:21,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:42:21,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:42:21,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77684704] [2020-10-14 03:42:21,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:42:21,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:21,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:42:21,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:42:21,764 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:42:25,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:25,596 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 03:42:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:42:25,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2020-10-14 03:42:25,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:25,628 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:42:25,628 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:42:25,638 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 03:42:25,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:42:25,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 03:42:25,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 03:42:25,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1035 transitions. [2020-10-14 03:42:25,744 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1035 transitions. Word has length 61 [2020-10-14 03:42:25,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:25,745 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1035 transitions. [2020-10-14 03:42:25,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:42:25,745 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1035 transitions. [2020-10-14 03:42:25,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-14 03:42:25,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:25,757 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:42:25,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:42:25,758 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:25,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:25,758 INFO L82 PathProgramCache]: Analyzing trace with hash 863274670, now seen corresponding path program 1 times [2020-10-14 03:42:25,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:25,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340223021] [2020-10-14 03:42:25,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:25,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:26,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:26,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:27,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:27,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:27,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:42:27,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:42:27,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1972 [2020-10-14 03:42:27,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:27,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 03:42:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 03:42:27,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:27,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:27,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:27,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:27,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:27,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:27,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:42:27,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:27,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:27,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:27,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:27,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:27,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:27,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:42:27,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:27,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:42:27,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:27,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:27,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:27,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:27,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 03:42:27,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:42:27,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340223021] [2020-10-14 03:42:27,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:27,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:42:27,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004789828] [2020-10-14 03:42:27,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:42:27,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:27,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:42:27,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:42:27,994 INFO L87 Difference]: Start difference. First operand 689 states and 1035 transitions. Second operand 5 states. [2020-10-14 03:42:31,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:31,344 INFO L93 Difference]: Finished difference Result 2063 states and 3131 transitions. [2020-10-14 03:42:31,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:42:31,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-10-14 03:42:31,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:31,356 INFO L225 Difference]: With dead ends: 2063 [2020-10-14 03:42:31,356 INFO L226 Difference]: Without dead ends: 1380 [2020-10-14 03:42:31,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:42:31,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-10-14 03:42:31,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1376. [2020-10-14 03:42:31,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-10-14 03:42:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1939 transitions. [2020-10-14 03:42:31,414 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1939 transitions. Word has length 133 [2020-10-14 03:42:31,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:31,416 INFO L479 AbstractCegarLoop]: Abstraction has 1376 states and 1939 transitions. [2020-10-14 03:42:31,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:42:31,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1939 transitions. [2020-10-14 03:42:31,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-14 03:42:31,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:31,422 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:42:31,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:42:31,422 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:31,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:31,423 INFO L82 PathProgramCache]: Analyzing trace with hash -84122877, now seen corresponding path program 1 times [2020-10-14 03:42:31,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:31,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346720031] [2020-10-14 03:42:31,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:31,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:31,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:32,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:32,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:32,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 03:42:32,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:42:32,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1375 [2020-10-14 03:42:32,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:32,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:32,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:32,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-14 03:42:32,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 03:42:32,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:32,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:32,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:32,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:32,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:32,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:32,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:42:32,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:32,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:32,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:32,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:32,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:33,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:33,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:42:33,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:33,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:42:33,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:33,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:33,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:33,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:33,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 03:42:33,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:33,205 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:42:33,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346720031] [2020-10-14 03:42:33,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:33,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:42:33,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068415345] [2020-10-14 03:42:33,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:42:33,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:33,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:42:33,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:42:33,209 INFO L87 Difference]: Start difference. First operand 1376 states and 1939 transitions. Second operand 5 states. [2020-10-14 03:42:36,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:36,861 INFO L93 Difference]: Finished difference Result 3431 states and 5020 transitions. [2020-10-14 03:42:36,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:42:36,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-10-14 03:42:36,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:36,875 INFO L225 Difference]: With dead ends: 3431 [2020-10-14 03:42:36,875 INFO L226 Difference]: Without dead ends: 2061 [2020-10-14 03:42:36,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:42:36,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2020-10-14 03:42:36,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 2057. [2020-10-14 03:42:36,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2057 states. [2020-10-14 03:42:36,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2744 transitions. [2020-10-14 03:42:36,934 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2744 transitions. Word has length 168 [2020-10-14 03:42:36,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:36,935 INFO L479 AbstractCegarLoop]: Abstraction has 2057 states and 2744 transitions. [2020-10-14 03:42:36,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:42:36,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2744 transitions. [2020-10-14 03:42:36,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-14 03:42:36,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:36,942 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:42:36,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:42:36,942 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:36,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:36,943 INFO L82 PathProgramCache]: Analyzing trace with hash 2069573047, now seen corresponding path program 1 times [2020-10-14 03:42:36,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:36,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619417716] [2020-10-14 03:42:36,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:36,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:37,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:37,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:37,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:40,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:41,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:41,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:41,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-14 03:42:41,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:42:41,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 03:42:41,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:41,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:41,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:41,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 03:42:41,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:42:41,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:42,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:42,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:42,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:42,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:42,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:42,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:42:42,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:42,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:42,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:42,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:42,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:42,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:42,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:42:42,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:42,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:42:42,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:42,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:42,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 03:42:42,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:42,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 03:42:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:42,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:42,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:42,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 03:42:42,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:42,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 03:42:42,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:42,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:42,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:42,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:42,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 03:42:42,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:42,491 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:42:42,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619417716] [2020-10-14 03:42:42,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:42,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:42,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191628724] [2020-10-14 03:42:42,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:42,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:42,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:42,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:42,496 INFO L87 Difference]: Start difference. First operand 2057 states and 2744 transitions. Second operand 7 states. [2020-10-14 03:42:46,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:46,590 INFO L93 Difference]: Finished difference Result 5841 states and 7951 transitions. [2020-10-14 03:42:46,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:42:46,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2020-10-14 03:42:46,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:46,613 INFO L225 Difference]: With dead ends: 5841 [2020-10-14 03:42:46,613 INFO L226 Difference]: Without dead ends: 3790 [2020-10-14 03:42:46,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:42:46,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3790 states. [2020-10-14 03:42:46,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3790 to 3109. [2020-10-14 03:42:46,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3109 states. [2020-10-14 03:42:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 4122 transitions. [2020-10-14 03:42:46,704 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 4122 transitions. Word has length 220 [2020-10-14 03:42:46,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:46,705 INFO L479 AbstractCegarLoop]: Abstraction has 3109 states and 4122 transitions. [2020-10-14 03:42:46,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:46,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 4122 transitions. [2020-10-14 03:42:46,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-14 03:42:46,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:46,712 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:42:46,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:42:46,713 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:46,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:46,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1127543919, now seen corresponding path program 1 times [2020-10-14 03:42:46,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:46,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605345054] [2020-10-14 03:42:46,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:46,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:46,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:48,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:48,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:51,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:51,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 352 [2020-10-14 03:42:51,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:42:51,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 03:42:51,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:51,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:51,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:51,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 03:42:51,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:42:51,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:51,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:51,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:51,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:51,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:51,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:42:51,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:51,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:51,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:51,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:51,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:51,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:42:51,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:51,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:52,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:52,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:42:52,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:52,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 03:42:52,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:52,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:52,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:52,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:42:52,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:42:52,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:42:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:52,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:52,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:52,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:42:52,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:52,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 03:42:52,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:52,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:52,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:52,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:52,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:42:52,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:52,530 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 240 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:42:52,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605345054] [2020-10-14 03:42:52,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:52,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:52,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290796165] [2020-10-14 03:42:52,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:52,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:52,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:52,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:52,534 INFO L87 Difference]: Start difference. First operand 3109 states and 4122 transitions. Second operand 7 states. [2020-10-14 03:42:59,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:59,800 INFO L93 Difference]: Finished difference Result 9780 states and 13647 transitions. [2020-10-14 03:42:59,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:42:59,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 340 [2020-10-14 03:42:59,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:59,839 INFO L225 Difference]: With dead ends: 9780 [2020-10-14 03:42:59,840 INFO L226 Difference]: Without dead ends: 6677 [2020-10-14 03:42:59,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:42:59,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6677 states. [2020-10-14 03:43:00,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 6597. [2020-10-14 03:43:00,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6597 states. [2020-10-14 03:43:00,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 8655 transitions. [2020-10-14 03:43:00,039 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 8655 transitions. Word has length 340 [2020-10-14 03:43:00,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:00,040 INFO L479 AbstractCegarLoop]: Abstraction has 6597 states and 8655 transitions. [2020-10-14 03:43:00,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:00,041 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 8655 transitions. [2020-10-14 03:43:00,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-10-14 03:43:00,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:00,051 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:00,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:43:00,052 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:00,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:00,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1373953805, now seen corresponding path program 1 times [2020-10-14 03:43:00,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:00,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177528537] [2020-10-14 03:43:00,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:00,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:00,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:01,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:03,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:03,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 370 [2020-10-14 03:43:03,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:43:03,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3463 [2020-10-14 03:43:03,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:03,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:03,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:03,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 309 [2020-10-14 03:43:03,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 03:43:03,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:03,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:03,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:03,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:03,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:03,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:03,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:43:03,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:03,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:03,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:03,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:03,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:03,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:03,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:03,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:03,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:03,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:43:03,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:03,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:43:03,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:03,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:03,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:03,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 03:43:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:03,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:03,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:03,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:43:03,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:03,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 03:43:03,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:03,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:03,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:43:03,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:04,168 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-14 03:43:04,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177528537] [2020-10-14 03:43:04,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:04,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:43:04,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972893] [2020-10-14 03:43:04,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:43:04,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:04,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:43:04,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:43:04,172 INFO L87 Difference]: Start difference. First operand 6597 states and 8655 transitions. Second operand 5 states. [2020-10-14 03:43:08,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:08,516 INFO L93 Difference]: Finished difference Result 12833 states and 16811 transitions. [2020-10-14 03:43:08,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:43:08,517 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 358 [2020-10-14 03:43:08,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:08,554 INFO L225 Difference]: With dead ends: 12833 [2020-10-14 03:43:08,554 INFO L226 Difference]: Without dead ends: 6597 [2020-10-14 03:43:08,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:43:08,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6597 states. [2020-10-14 03:43:08,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6597 to 6597. [2020-10-14 03:43:08,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6597 states. [2020-10-14 03:43:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 7967 transitions. [2020-10-14 03:43:08,723 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 7967 transitions. Word has length 358 [2020-10-14 03:43:08,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:08,724 INFO L479 AbstractCegarLoop]: Abstraction has 6597 states and 7967 transitions. [2020-10-14 03:43:08,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:43:08,724 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 7967 transitions. [2020-10-14 03:43:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2020-10-14 03:43:08,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:08,744 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:08,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:43:08,744 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:08,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:08,745 INFO L82 PathProgramCache]: Analyzing trace with hash 728804871, now seen corresponding path program 1 times [2020-10-14 03:43:08,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:08,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411388980] [2020-10-14 03:43:08,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:08,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:08,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:09,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:12,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:13,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:13,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:13,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 03:43:13,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:43:13,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:43:13,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:13,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:13,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:13,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 309 [2020-10-14 03:43:13,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:43:13,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:13,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:13,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:13,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:13,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:13,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:13,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:13,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:13,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:13,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:13,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:13,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:13,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:43:13,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:13,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:13,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:13,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:43:13,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:13,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:43:13,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:13,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:13,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:13,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:13,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:13,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:14,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 03:43:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:14,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:14,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:14,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:43:14,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:14,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 03:43:14,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:14,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:14,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:14,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:43:14,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:14,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-14 03:43:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:14,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:14,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:14,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 03:43:14,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:14,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 03:43:14,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:14,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:14,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-14 03:43:14,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:14,821 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 458 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2020-10-14 03:43:14,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411388980] [2020-10-14 03:43:14,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:14,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:14,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061323436] [2020-10-14 03:43:14,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:14,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:14,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:14,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:14,824 INFO L87 Difference]: Start difference. First operand 6597 states and 7967 transitions. Second operand 7 states. [2020-10-14 03:43:20,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:20,019 INFO L93 Difference]: Finished difference Result 14943 states and 18513 transitions. [2020-10-14 03:43:20,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:43:20,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 518 [2020-10-14 03:43:20,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:20,056 INFO L225 Difference]: With dead ends: 14943 [2020-10-14 03:43:20,056 INFO L226 Difference]: Without dead ends: 8356 [2020-10-14 03:43:20,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:43:20,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8356 states. [2020-10-14 03:43:20,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8356 to 7654. [2020-10-14 03:43:20,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7654 states. [2020-10-14 03:43:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7654 states to 7654 states and 9064 transitions. [2020-10-14 03:43:20,247 INFO L78 Accepts]: Start accepts. Automaton has 7654 states and 9064 transitions. Word has length 518 [2020-10-14 03:43:20,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:20,248 INFO L479 AbstractCegarLoop]: Abstraction has 7654 states and 9064 transitions. [2020-10-14 03:43:20,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:20,248 INFO L276 IsEmpty]: Start isEmpty. Operand 7654 states and 9064 transitions. [2020-10-14 03:43:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2020-10-14 03:43:20,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:20,278 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:20,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:43:20,279 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:20,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:20,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1380283177, now seen corresponding path program 1 times [2020-10-14 03:43:20,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:20,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837353202] [2020-10-14 03:43:20,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:20,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:20,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:20,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:21,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:25,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 568 [2020-10-14 03:43:25,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:43:25,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 03:43:25,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:25,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:25,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:25,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 03:43:25,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 03:43:25,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:25,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:25,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:25,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:25,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:25,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:25,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:25,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:25,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:25,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:25,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:25,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:43:25,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:25,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:43:25,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:25,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:25,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:25,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:25,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:25,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:25,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:43:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:25,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:25,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:43:25,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:25,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 03:43:25,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:25,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:25,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:43:25,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:25,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-14 03:43:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:25,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:25,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 03:43:25,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:25,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 03:43:25,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:25,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:25,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:25,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-14 03:43:25,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:26,234 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 456 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 03:43:26,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837353202] [2020-10-14 03:43:26,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:26,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:43:26,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843393801] [2020-10-14 03:43:26,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:43:26,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:26,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:43:26,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:43:26,237 INFO L87 Difference]: Start difference. First operand 7654 states and 9064 transitions. Second operand 8 states. [2020-10-14 03:43:33,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:33,139 INFO L93 Difference]: Finished difference Result 21807 states and 26262 transitions. [2020-10-14 03:43:33,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:43:33,140 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 554 [2020-10-14 03:43:33,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:33,179 INFO L225 Difference]: With dead ends: 21807 [2020-10-14 03:43:33,179 INFO L226 Difference]: Without dead ends: 12373 [2020-10-14 03:43:33,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:43:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12373 states. [2020-10-14 03:43:33,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12373 to 9974. [2020-10-14 03:43:33,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9974 states. [2020-10-14 03:43:33,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9974 states to 9974 states and 10608 transitions. [2020-10-14 03:43:33,402 INFO L78 Accepts]: Start accepts. Automaton has 9974 states and 10608 transitions. Word has length 554 [2020-10-14 03:43:33,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:33,404 INFO L479 AbstractCegarLoop]: Abstraction has 9974 states and 10608 transitions. [2020-10-14 03:43:33,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:43:33,404 INFO L276 IsEmpty]: Start isEmpty. Operand 9974 states and 10608 transitions. [2020-10-14 03:43:33,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 975 [2020-10-14 03:43:33,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:33,444 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:33,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:43:33,445 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:33,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:33,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1566128655, now seen corresponding path program 1 times [2020-10-14 03:43:33,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:33,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316223049] [2020-10-14 03:43:33,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:33,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:33,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:34,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:35,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:38,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:38,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 994 [2020-10-14 03:43:38,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:43:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 03:43:38,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:38,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 565 [2020-10-14 03:43:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:43:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:38,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:38,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:38,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:38,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:38,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:38,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:43:38,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:38,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:38,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:38,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:38,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:38,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:38,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:38,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:38,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:38,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:43:38,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:38,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:43:38,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:38,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:38,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:38,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:38,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:38,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:38,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 03:43:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:38,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:38,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:38,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:43:38,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:38,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:43:38,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:38,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:38,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:38,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:38,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-14 03:43:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:38,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:38,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:38,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:43:38,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:38,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:43:38,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:38,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:38,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:38,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2020-10-14 03:43:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:38,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:39,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:39,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:43:39,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:39,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:43:39,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:39,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:39,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:39,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:39,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:43:39,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:39,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2020-10-14 03:43:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:39,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:39,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:39,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:43:39,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:39,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-14 03:43:39,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:39,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:43:39,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:39,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 772 [2020-10-14 03:43:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:39,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:39,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:39,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:43:39,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:43:39,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:39,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:43:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:40,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 892 proven. 148 refuted. 0 times theorem prover too weak. 1285 trivial. 0 not checked. [2020-10-14 03:43:40,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316223049] [2020-10-14 03:43:40,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:40,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:40,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523697868] [2020-10-14 03:43:40,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:40,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:40,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:40,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:40,120 INFO L87 Difference]: Start difference. First operand 9974 states and 10608 transitions. Second operand 7 states. [2020-10-14 03:43:43,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:43,575 INFO L93 Difference]: Finished difference Result 24375 states and 26158 transitions. [2020-10-14 03:43:43,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:43:43,577 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 974 [2020-10-14 03:43:43,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:43,624 INFO L225 Difference]: With dead ends: 24375 [2020-10-14 03:43:43,624 INFO L226 Difference]: Without dead ends: 14407 [2020-10-14 03:43:43,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:43:43,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14407 states. [2020-10-14 03:43:43,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14407 to 14060. [2020-10-14 03:43:43,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14060 states. [2020-10-14 03:43:43,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14060 states to 14060 states and 14953 transitions. [2020-10-14 03:43:43,907 INFO L78 Accepts]: Start accepts. Automaton has 14060 states and 14953 transitions. Word has length 974 [2020-10-14 03:43:43,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:43,907 INFO L479 AbstractCegarLoop]: Abstraction has 14060 states and 14953 transitions. [2020-10-14 03:43:43,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:43,908 INFO L276 IsEmpty]: Start isEmpty. Operand 14060 states and 14953 transitions. [2020-10-14 03:43:43,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1150 [2020-10-14 03:43:43,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:43,944 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:43,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:43:43,945 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:43,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:43,945 INFO L82 PathProgramCache]: Analyzing trace with hash 408950930, now seen corresponding path program 1 times [2020-10-14 03:43:43,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:43,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199075581] [2020-10-14 03:43:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:44,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:44,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:44,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:44,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:49,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:49,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1169 [2020-10-14 03:43:49,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:43:49,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 03:43:49,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:49,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 342 [2020-10-14 03:43:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:43:49,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:49,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:49,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:49,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:49,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:49,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:49,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:49,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:49,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:49,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:49,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:49,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:49,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:49,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:49,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:49,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:49,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:43:49,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:49,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:43:49,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:49,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:49,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:49,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:49,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:49,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:49,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:43:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:49,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:49,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:49,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:43:49,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:49,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 03:43:49,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:49,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:49,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:49,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:49,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:43:49,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:49,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-10-14 03:43:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:49,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:49,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:49,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:43:49,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:49,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-14 03:43:49,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:49,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:43:49,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:49,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-10-14 03:43:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:49,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:49,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:49,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:43:49,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:49,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:43:49,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:49,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:49,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:49,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:43:49,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:49,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:49,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-14 03:43:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:49,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:50,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:50,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:43:50,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:50,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:43:50,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:50,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:43:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:50,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:50,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-14 03:43:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:50,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:50,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:50,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 03:43:50,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:51,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2343 backedges. 677 proven. 478 refuted. 0 times theorem prover too weak. 1188 trivial. 0 not checked. [2020-10-14 03:43:51,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199075581] [2020-10-14 03:43:51,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:51,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:51,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028121110] [2020-10-14 03:43:51,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:51,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:51,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:51,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:51,176 INFO L87 Difference]: Start difference. First operand 14060 states and 14953 transitions. Second operand 7 states. [2020-10-14 03:43:54,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:54,553 INFO L93 Difference]: Finished difference Result 28130 states and 29938 transitions. [2020-10-14 03:43:54,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:43:54,554 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1149 [2020-10-14 03:43:54,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:54,594 INFO L225 Difference]: With dead ends: 28130 [2020-10-14 03:43:54,595 INFO L226 Difference]: Without dead ends: 14076 [2020-10-14 03:43:54,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:43:54,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14076 states. [2020-10-14 03:43:54,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14076 to 13725. [2020-10-14 03:43:54,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13725 states. [2020-10-14 03:43:54,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13725 states to 13725 states and 14603 transitions. [2020-10-14 03:43:54,844 INFO L78 Accepts]: Start accepts. Automaton has 13725 states and 14603 transitions. Word has length 1149 [2020-10-14 03:43:54,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:54,845 INFO L479 AbstractCegarLoop]: Abstraction has 13725 states and 14603 transitions. [2020-10-14 03:43:54,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:54,846 INFO L276 IsEmpty]: Start isEmpty. Operand 13725 states and 14603 transitions. [2020-10-14 03:43:54,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1311 [2020-10-14 03:43:54,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:54,884 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, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:43:54,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:43:54,885 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:54,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:54,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1277105263, now seen corresponding path program 1 times [2020-10-14 03:43:54,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:54,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978856903] [2020-10-14 03:43:54,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:55,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:55,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:55,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:55,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:55,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:57,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:00,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:00,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1334 [2020-10-14 03:44:00,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:44:00,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 03:44:00,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:00,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:00,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:00,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 507 [2020-10-14 03:44:00,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:44:00,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:00,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:00,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:00,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:00,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:00,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:00,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:00,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:00,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:00,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:00,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:00,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:00,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:00,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:44:00,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:00,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:44:00,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:00,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:00,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:00,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:00,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:00,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:00,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:44:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:00,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:00,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:00,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:44:00,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:00,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:44:00,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:00,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:00,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:00,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:00,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:00,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:00,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-10-14 03:44:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:00,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:00,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:00,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:44:00,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:00,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:44:00,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:00,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:00,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:00,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:00,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:00,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:00,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-14 03:44:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:00,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:00,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:00,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:44:00,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:00,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:44:00,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:00,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:00,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:00,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:00,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 03:44:00,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:00,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2020-10-14 03:44:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:00,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:00,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:00,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:44:00,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:00,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-14 03:44:00,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:00,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:00,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:00,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:00,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:44:00,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:00,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 772 [2020-10-14 03:44:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:00,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:01,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:01,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:44:01,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:01,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:44:01,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:01,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:44:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:01,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:01,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 843 [2020-10-14 03:44:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:01,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:01,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:01,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:44:01,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:01,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:44:01,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:01,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:44:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:01,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:01,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1097 [2020-10-14 03:44:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:01,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:01,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:01,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 03:44:01,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:01,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:44:01,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:01,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:01,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:01,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 03:44:01,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:01,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3597 backedges. 974 proven. 478 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2020-10-14 03:44:02,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978856903] [2020-10-14 03:44:02,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:02,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:02,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510600746] [2020-10-14 03:44:02,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:02,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:02,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:02,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:02,841 INFO L87 Difference]: Start difference. First operand 13725 states and 14603 transitions. Second operand 7 states. [2020-10-14 03:44:06,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:06,237 INFO L93 Difference]: Finished difference Result 28477 states and 30295 transitions. [2020-10-14 03:44:06,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:44:06,238 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1310 [2020-10-14 03:44:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:06,283 INFO L225 Difference]: With dead ends: 28477 [2020-10-14 03:44:06,283 INFO L226 Difference]: Without dead ends: 14758 [2020-10-14 03:44:06,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:06,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14758 states. [2020-10-14 03:44:06,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14758 to 14403. [2020-10-14 03:44:06,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14403 states. [2020-10-14 03:44:06,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14403 states to 14403 states and 15290 transitions. [2020-10-14 03:44:06,523 INFO L78 Accepts]: Start accepts. Automaton has 14403 states and 15290 transitions. Word has length 1310 [2020-10-14 03:44:06,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:06,524 INFO L479 AbstractCegarLoop]: Abstraction has 14403 states and 15290 transitions. [2020-10-14 03:44:06,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:06,525 INFO L276 IsEmpty]: Start isEmpty. Operand 14403 states and 15290 transitions. [2020-10-14 03:44:06,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1320 [2020-10-14 03:44:06,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:06,576 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:06,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:44:06,577 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:06,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:06,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1346893658, now seen corresponding path program 1 times [2020-10-14 03:44:06,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:06,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850061726] [2020-10-14 03:44:06,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:06,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:06,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:07,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:07,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:07,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:11,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:11,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1341 [2020-10-14 03:44:11,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:44:11,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 03:44:11,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:11,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:11,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:11,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 514 [2020-10-14 03:44:11,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:44:11,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:11,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:11,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:11,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:11,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:11,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:11,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:11,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:11,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:11,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:11,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:11,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:11,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:44:11,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:44:11,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:11,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:11,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:44:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:11,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:11,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:11,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:44:11,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:11,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:44:11,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:11,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:11,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:11,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:11,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:11,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:11,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:44:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:11,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:12,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:12,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:44:12,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:12,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 03:44:12,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:12,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:12,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 03:44:12,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:12,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2020-10-14 03:44:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:12,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:12,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:12,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:44:12,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:12,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-14 03:44:12,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:12,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:12,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:12,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:12,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:44:12,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:12,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2020-10-14 03:44:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:12,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:12,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:12,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:44:12,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:12,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:44:12,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:12,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:12,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:12,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:44:12,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:12,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:12,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 852 [2020-10-14 03:44:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:12,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:12,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:12,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:44:12,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:12,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:44:12,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:12,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:12,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:12,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:44:12,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:12,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:12,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1106 [2020-10-14 03:44:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:12,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:12,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:12,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 03:44:12,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:12,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:44:12,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:12,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 03:44:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:12,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:14,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3153 backedges. 915 proven. 478 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2020-10-14 03:44:14,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850061726] [2020-10-14 03:44:14,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:14,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:14,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765774863] [2020-10-14 03:44:14,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:14,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:14,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:14,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:14,101 INFO L87 Difference]: Start difference. First operand 14403 states and 15290 transitions. Second operand 7 states. [2020-10-14 03:44:17,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:17,560 INFO L93 Difference]: Finished difference Result 31171 states and 33273 transitions. [2020-10-14 03:44:17,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:44:17,561 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1319 [2020-10-14 03:44:17,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:17,596 INFO L225 Difference]: With dead ends: 31171 [2020-10-14 03:44:17,596 INFO L226 Difference]: Without dead ends: 16435 [2020-10-14 03:44:17,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:44:17,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16435 states. [2020-10-14 03:44:17,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16435 to 15753. [2020-10-14 03:44:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15753 states. [2020-10-14 03:44:17,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15753 states to 15753 states and 16628 transitions. [2020-10-14 03:44:17,862 INFO L78 Accepts]: Start accepts. Automaton has 15753 states and 16628 transitions. Word has length 1319 [2020-10-14 03:44:17,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:17,863 INFO L479 AbstractCegarLoop]: Abstraction has 15753 states and 16628 transitions. [2020-10-14 03:44:17,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:17,863 INFO L276 IsEmpty]: Start isEmpty. Operand 15753 states and 16628 transitions. [2020-10-14 03:44:17,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1492 [2020-10-14 03:44:17,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:17,911 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:17,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:44:17,912 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:17,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:17,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1295891978, now seen corresponding path program 1 times [2020-10-14 03:44:17,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:17,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559861569] [2020-10-14 03:44:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:18,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1515 [2020-10-14 03:44:23,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:23,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-14 03:44:23,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:23,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 816 [2020-10-14 03:44:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:44:23,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:23,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:23,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:23,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:23,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:23,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:23,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:44:23,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:23,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:44:23,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:23,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:23,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:44:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:44:23,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:23,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:44:23,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:23,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:23,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:44:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:44:23,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:23,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:44:23,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:23,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:23,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2020-10-14 03:44:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:44:23,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:23,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 03:44:23,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 295 [2020-10-14 03:44:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:23,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:44:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:44:23,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:23,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:44:23,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 03:44:23,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:23,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2020-10-14 03:44:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:24,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:24,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 03:44:24,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:24,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 03:44:24,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:24,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 266 [2020-10-14 03:44:24,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:24,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1074 [2020-10-14 03:44:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:24,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:24,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:24,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:44:24,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:24,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 03:44:24,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:24,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:24,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:24,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:44:24,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:24,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:24,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1289 [2020-10-14 03:44:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:24,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:24,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:24,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:44:24,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:44:24,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:24,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:44:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3749 backedges. 1178 proven. 360 refuted. 0 times theorem prover too weak. 2211 trivial. 0 not checked. [2020-10-14 03:44:25,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1559861569] [2020-10-14 03:44:25,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:25,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:25,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202439114] [2020-10-14 03:44:25,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:25,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:25,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:25,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:25,514 INFO L87 Difference]: Start difference. First operand 15753 states and 16628 transitions. Second operand 7 states. [2020-10-14 03:44:30,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:30,537 INFO L93 Difference]: Finished difference Result 33218 states and 35067 transitions. [2020-10-14 03:44:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:30,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1491 [2020-10-14 03:44:30,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:30,579 INFO L225 Difference]: With dead ends: 33218 [2020-10-14 03:44:30,579 INFO L226 Difference]: Without dead ends: 17471 [2020-10-14 03:44:30,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:30,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17471 states. [2020-10-14 03:44:30,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17471 to 17467. [2020-10-14 03:44:30,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17467 states. [2020-10-14 03:44:30,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17467 states to 17467 states and 18406 transitions. [2020-10-14 03:44:30,897 INFO L78 Accepts]: Start accepts. Automaton has 17467 states and 18406 transitions. Word has length 1491 [2020-10-14 03:44:30,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:30,898 INFO L479 AbstractCegarLoop]: Abstraction has 17467 states and 18406 transitions. [2020-10-14 03:44:30,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:30,899 INFO L276 IsEmpty]: Start isEmpty. Operand 17467 states and 18406 transitions. [2020-10-14 03:44:30,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1541 [2020-10-14 03:44:30,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:30,946 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:30,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:44:30,947 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:30,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:30,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1283786127, now seen corresponding path program 1 times [2020-10-14 03:44:30,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:30,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029075401] [2020-10-14 03:44:30,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:31,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:31,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:31,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:35,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:36,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:36,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1564 [2020-10-14 03:44:36,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:36,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-14 03:44:36,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:36,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:36,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 590 [2020-10-14 03:44:36,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:44:36,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:36,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:36,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:36,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:36,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:36,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:36,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:36,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:36,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:36,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:36,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:36,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:36,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:36,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:36,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:36,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:36,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:44:36,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:36,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:44:36,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:36,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:36,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:36,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:36,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:36,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:36,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:44:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:36,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:36,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:36,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:44:36,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:36,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:44:36,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:36,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:36,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:36,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:36,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:36,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:36,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:44:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:36,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:37,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:37,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:44:37,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:37,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-14 03:44:37,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:37,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-14 03:44:37,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:37,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:44:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:37,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:37,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:37,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:44:37,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:37,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 03:44:37,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:37,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 03:44:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:37,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2020-10-14 03:44:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:37,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:37,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:37,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:44:37,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:37,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-14 03:44:37,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:37,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:37,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:37,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:37,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:44:37,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:37,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 858 [2020-10-14 03:44:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:38,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:38,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:38,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 03:44:38,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:38,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:44:38,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:38,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 03:44:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:38,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:38,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1123 [2020-10-14 03:44:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:38,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:38,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:38,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:44:38,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:38,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:44:38,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:38,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:44:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:38,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:38,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1338 [2020-10-14 03:44:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:38,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:38,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:38,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:44:38,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:38,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:44:38,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:38,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:44:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:38,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3787 backedges. 938 proven. 622 refuted. 0 times theorem prover too weak. 2227 trivial. 0 not checked. [2020-10-14 03:44:40,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029075401] [2020-10-14 03:44:40,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:40,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:44:40,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914181913] [2020-10-14 03:44:40,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:44:40,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:40,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:44:40,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:44:40,446 INFO L87 Difference]: Start difference. First operand 17467 states and 18406 transitions. Second operand 8 states. [2020-10-14 03:44:44,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:44,092 INFO L93 Difference]: Finished difference Result 35251 states and 37154 transitions. [2020-10-14 03:44:44,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:44:44,094 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1540 [2020-10-14 03:44:44,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:44,131 INFO L225 Difference]: With dead ends: 35251 [2020-10-14 03:44:44,132 INFO L226 Difference]: Without dead ends: 18145 [2020-10-14 03:44:44,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:44:44,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18145 states. [2020-10-14 03:44:44,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18145 to 17467. [2020-10-14 03:44:44,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17467 states. [2020-10-14 03:44:44,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17467 states to 17467 states and 18382 transitions. [2020-10-14 03:44:44,449 INFO L78 Accepts]: Start accepts. Automaton has 17467 states and 18382 transitions. Word has length 1540 [2020-10-14 03:44:44,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:44,450 INFO L479 AbstractCegarLoop]: Abstraction has 17467 states and 18382 transitions. [2020-10-14 03:44:44,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:44:44,450 INFO L276 IsEmpty]: Start isEmpty. Operand 17467 states and 18382 transitions. [2020-10-14 03:44:44,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1592 [2020-10-14 03:44:44,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:44,496 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, 9, 9, 9, 9, 9, 9, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:44,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:44:44,496 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:44,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:44,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1746767378, now seen corresponding path program 1 times [2020-10-14 03:44:44,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:44,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300217148] [2020-10-14 03:44:44,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:44,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:44,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:45,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:45,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:49,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:49,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1617 [2020-10-14 03:44:49,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:49,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 03:44:49,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:49,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 262 [2020-10-14 03:44:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:44:49,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:49,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:49,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:49,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:49,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:49,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:49,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:44:49,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:49,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:49,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:49,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:49,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:49,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:49,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:49,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:49,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:49,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:44:49,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:49,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:44:49,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:49,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:49,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:49,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:44:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:49,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:49,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:49,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:44:49,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:49,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:44:49,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:49,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:44:49,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:49,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:44:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:49,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:50,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:50,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:44:50,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:50,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 03:44:50,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:50,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:50,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:50,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:50,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:44:50,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:50,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2020-10-14 03:44:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:50,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:50,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:50,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:44:50,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:50,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 03:44:50,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:50,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:44:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:50,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:50,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:44:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:50,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:50,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:50,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:44:50,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:50,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:44:50,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:50,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:50,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:50,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2020-10-14 03:44:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:50,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:50,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:50,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:44:50,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:50,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:44:50,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:50,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:44:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:50,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 880 [2020-10-14 03:44:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:50,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:50,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:50,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:44:50,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:50,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:44:50,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:50,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:50,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:50,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:44:50,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:50,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:50,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1134 [2020-10-14 03:44:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:50,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:50,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:50,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-14 03:44:50,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:50,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:44:50,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:50,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:50,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:50,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 03:44:50,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:50,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:50,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1365 [2020-10-14 03:44:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:50,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:51,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:51,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:44:51,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:51,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:44:51,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:51,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:44:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:51,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4433 backedges. 721 proven. 962 refuted. 0 times theorem prover too weak. 2750 trivial. 0 not checked. [2020-10-14 03:44:52,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300217148] [2020-10-14 03:44:52,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:52,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:52,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737160706] [2020-10-14 03:44:52,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:52,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:52,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:52,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:52,558 INFO L87 Difference]: Start difference. First operand 17467 states and 18382 transitions. Second operand 7 states. [2020-10-14 03:44:56,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:56,112 INFO L93 Difference]: Finished difference Result 34916 states and 36745 transitions. [2020-10-14 03:44:56,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:44:56,113 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1591 [2020-10-14 03:44:56,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:56,143 INFO L225 Difference]: With dead ends: 34916 [2020-10-14 03:44:56,143 INFO L226 Difference]: Without dead ends: 17810 [2020-10-14 03:44:56,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:44:56,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17810 states. [2020-10-14 03:44:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17810 to 17806. [2020-10-14 03:44:56,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17806 states. [2020-10-14 03:44:56,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17806 states to 17806 states and 18729 transitions. [2020-10-14 03:44:56,397 INFO L78 Accepts]: Start accepts. Automaton has 17806 states and 18729 transitions. Word has length 1591 [2020-10-14 03:44:56,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:56,398 INFO L479 AbstractCegarLoop]: Abstraction has 17806 states and 18729 transitions. [2020-10-14 03:44:56,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:56,398 INFO L276 IsEmpty]: Start isEmpty. Operand 17806 states and 18729 transitions. [2020-10-14 03:44:56,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1615 [2020-10-14 03:44:56,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:56,431 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:56,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:44:56,431 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:56,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:56,432 INFO L82 PathProgramCache]: Analyzing trace with hash 30415959, now seen corresponding path program 1 times [2020-10-14 03:44:56,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:56,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984708516] [2020-10-14 03:44:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:56,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:56,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:58,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:01,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:01,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1640 [2020-10-14 03:45:01,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:45:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 03:45:01,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:01,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1211 [2020-10-14 03:45:01,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:45:01,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:01,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:01,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:01,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:01,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:01,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:01,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:45:01,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:01,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:01,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:01,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:01,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:01,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:01,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:45:01,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:01,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:45:01,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:01,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:01,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:01,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:01,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:01,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:01,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:45:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:01,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:02,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:02,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:45:02,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:02,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:45:02,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:02,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:02,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:02,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:02,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:02,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:45:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:02,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:02,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:02,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:45:02,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:02,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 03:45:02,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:02,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:02,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:45:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:02,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:02,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:02,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:45:02,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:02,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:45:02,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:02,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:02,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2020-10-14 03:45:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:02,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:02,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:02,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:45:02,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:02,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:45:02,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:02,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:02,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:02,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:02,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:02,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-14 03:45:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:02,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:02,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:02,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:02,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:02,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:45:02,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:02,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:02,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:02,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:02,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:02,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 03:45:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:02,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:02,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:02,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 03:45:02,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:02,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 03:45:02,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:02,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:02,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:02,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:02,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 260 [2020-10-14 03:45:02,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1197 [2020-10-14 03:45:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:02,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:03,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:03,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:45:03,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:03,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-14 03:45:03,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:03,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:03,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:03,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:03,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:45:03,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:03,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1412 [2020-10-14 03:45:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:03,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:03,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:45:03,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:03,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:45:03,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:03,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:45:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:03,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4359 backedges. 1432 proven. 148 refuted. 0 times theorem prover too weak. 2779 trivial. 0 not checked. [2020-10-14 03:45:04,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984708516] [2020-10-14 03:45:04,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:04,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:04,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393704778] [2020-10-14 03:45:04,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:04,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:04,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:04,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:04,795 INFO L87 Difference]: Start difference. First operand 17806 states and 18729 transitions. Second operand 7 states. [2020-10-14 03:45:08,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:08,532 INFO L93 Difference]: Finished difference Result 35256 states and 37097 transitions. [2020-10-14 03:45:08,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:45:08,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1614 [2020-10-14 03:45:08,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:08,568 INFO L225 Difference]: With dead ends: 35256 [2020-10-14 03:45:08,568 INFO L226 Difference]: Without dead ends: 17462 [2020-10-14 03:45:08,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:45:08,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17462 states. [2020-10-14 03:45:08,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17462 to 17452. [2020-10-14 03:45:08,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17452 states. [2020-10-14 03:45:08,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17452 states to 17452 states and 18325 transitions. [2020-10-14 03:45:08,810 INFO L78 Accepts]: Start accepts. Automaton has 17452 states and 18325 transitions. Word has length 1614 [2020-10-14 03:45:08,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:08,812 INFO L479 AbstractCegarLoop]: Abstraction has 17452 states and 18325 transitions. [2020-10-14 03:45:08,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:08,812 INFO L276 IsEmpty]: Start isEmpty. Operand 17452 states and 18325 transitions. [2020-10-14 03:45:08,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1715 [2020-10-14 03:45:08,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:08,858 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, 10, 10, 10, 10, 10, 10, 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, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:08,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:45:08,858 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:08,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:08,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1748894707, now seen corresponding path program 1 times [2020-10-14 03:45:08,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:08,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000407974] [2020-10-14 03:45:08,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:09,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:09,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:09,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1742 [2020-10-14 03:45:14,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:45:14,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-14 03:45:14,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 944 [2020-10-14 03:45:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 03:45:14,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:14,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:14,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:14,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:14,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:14,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:45:14,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:45:14,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:14,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:14,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:45:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:45:14,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 03:45:14,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:45:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:45:14,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 03:45:14,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:14,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:45:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:45:14,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:45:14,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:14,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2020-10-14 03:45:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:45:14,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:45:14,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:14,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-14 03:45:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:14,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 03:45:14,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-14 03:45:14,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 03:45:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:45:14,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:45:14,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 03:45:14,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-14 03:45:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:15,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:15,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:45:15,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:15,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:45:15,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:15,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:15,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:15,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:45:15,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:15,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:15,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1257 [2020-10-14 03:45:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:15,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:15,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:15,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-14 03:45:15,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:15,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 03:45:15,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:15,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 03:45:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:15,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:15,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1488 [2020-10-14 03:45:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:15,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:15,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:15,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:45:15,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:15,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:45:15,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:15,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:15,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:15,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:45:15,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:15,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5103 backedges. 906 proven. 206 refuted. 0 times theorem prover too weak. 3991 trivial. 0 not checked. [2020-10-14 03:45:16,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000407974] [2020-10-14 03:45:16,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:16,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:16,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352395405] [2020-10-14 03:45:16,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:16,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:16,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:16,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:16,796 INFO L87 Difference]: Start difference. First operand 17452 states and 18325 transitions. Second operand 7 states. [2020-10-14 03:45:20,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:20,279 INFO L93 Difference]: Finished difference Result 35907 states and 37734 transitions. [2020-10-14 03:45:20,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:45:20,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1714 [2020-10-14 03:45:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:20,311 INFO L225 Difference]: With dead ends: 35907 [2020-10-14 03:45:20,311 INFO L226 Difference]: Without dead ends: 18806 [2020-10-14 03:45:20,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:45:20,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18806 states. [2020-10-14 03:45:20,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18806 to 17787. [2020-10-14 03:45:20,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17787 states. [2020-10-14 03:45:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17787 states to 17787 states and 18684 transitions. [2020-10-14 03:45:20,535 INFO L78 Accepts]: Start accepts. Automaton has 17787 states and 18684 transitions. Word has length 1714 [2020-10-14 03:45:20,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:20,536 INFO L479 AbstractCegarLoop]: Abstraction has 17787 states and 18684 transitions. [2020-10-14 03:45:20,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 17787 states and 18684 transitions. [2020-10-14 03:45:20,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1827 [2020-10-14 03:45:20,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:20,575 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:20,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:45:20,575 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:20,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:20,576 INFO L82 PathProgramCache]: Analyzing trace with hash 442411199, now seen corresponding path program 1 times [2020-10-14 03:45:20,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:20,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457611158] [2020-10-14 03:45:20,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:20,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:20,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:20,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:25,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:25,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1856 [2020-10-14 03:45:25,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:45:25,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5254 [2020-10-14 03:45:25,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:25,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 03:45:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:45:25,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:26,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:45:26,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:26,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:26,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:26,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:45:26,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:45:26,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:45:26,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:45:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:45:26,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:45:26,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:45:26,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:45:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:45:26,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 03:45:26,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:45:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:26,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:45:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:45:26,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:45:26,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:26,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:26,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:26,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2020-10-14 03:45:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:45:26,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:45:26,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:45:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:26,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-14 03:45:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:26,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 03:45:26,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:45:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:26,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 03:45:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:45:26,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:45:26,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:26,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:45:26,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:26,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1044 [2020-10-14 03:45:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:45:26,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:45:26,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:26,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:45:26,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:26,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 03:45:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:45:26,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:45:26,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:45:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:26,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:27,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1369 [2020-10-14 03:45:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:27,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:27,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:27,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-14 03:45:27,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:27,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 03:45:27,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:27,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 03:45:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:27,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:27,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1600 [2020-10-14 03:45:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:27,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:27,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:27,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:45:27,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:27,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:45:27,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:27,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:45:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:27,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6086 backedges. 684 proven. 810 refuted. 0 times theorem prover too weak. 4592 trivial. 0 not checked. [2020-10-14 03:45:28,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457611158] [2020-10-14 03:45:28,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:28,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:28,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316485828] [2020-10-14 03:45:28,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:28,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:28,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:28,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:28,463 INFO L87 Difference]: Start difference. First operand 17787 states and 18684 transitions. Second operand 7 states. [2020-10-14 03:45:32,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:32,443 INFO L93 Difference]: Finished difference Result 35913 states and 37842 transitions. [2020-10-14 03:45:32,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:45:32,444 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1826 [2020-10-14 03:45:32,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:32,477 INFO L225 Difference]: With dead ends: 35913 [2020-10-14 03:45:32,477 INFO L226 Difference]: Without dead ends: 18479 [2020-10-14 03:45:32,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:45:32,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18479 states. [2020-10-14 03:45:32,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18479 to 18126. [2020-10-14 03:45:32,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18126 states. [2020-10-14 03:45:32,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18126 states to 18126 states and 18784 transitions. [2020-10-14 03:45:32,688 INFO L78 Accepts]: Start accepts. Automaton has 18126 states and 18784 transitions. Word has length 1826 [2020-10-14 03:45:32,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:32,689 INFO L479 AbstractCegarLoop]: Abstraction has 18126 states and 18784 transitions. [2020-10-14 03:45:32,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:32,689 INFO L276 IsEmpty]: Start isEmpty. Operand 18126 states and 18784 transitions. [2020-10-14 03:45:32,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2017 [2020-10-14 03:45:32,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:32,795 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:45:32,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:45:32,796 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:32,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:32,796 INFO L82 PathProgramCache]: Analyzing trace with hash -745689085, now seen corresponding path program 1 times [2020-10-14 03:45:32,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:32,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469963640] [2020-10-14 03:45:32,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:33,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:33,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:33,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:33,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:33,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2050 [2020-10-14 03:45:38,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:45:38,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-14 03:45:38,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:38,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1252 [2020-10-14 03:45:38,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 03:45:38,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:38,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:38,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 03:45:38,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:45:38,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:38,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-14 03:45:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:45:38,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:45:38,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2020-10-14 03:45:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:45:38,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:45:38,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2020-10-14 03:45:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:45:38,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:45:38,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2020-10-14 03:45:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:45:38,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:45:38,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:38,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:45:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:45:38,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:45:38,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:38,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:38,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2020-10-14 03:45:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:45:38,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:45:38,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 03:45:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:38,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:45:38,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:38,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1122 [2020-10-14 03:45:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:45:38,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:45:38,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:38,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:38,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 03:45:38,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:38,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1234 [2020-10-14 03:45:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:39,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:39,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:45:39,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:39,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:45:39,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:39,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:39,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:39,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:39,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 03:45:39,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:39,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1305 [2020-10-14 03:45:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:39,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:39,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:39,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:45:39,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:45:39,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:39,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:45:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:39,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:39,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1559 [2020-10-14 03:45:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:39,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:39,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:39,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-14 03:45:39,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:39,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:45:39,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:39,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 03:45:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:39,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1790 [2020-10-14 03:45:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:39,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:39,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:39,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:45:39,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:45:39,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:39,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:45:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:41,231 INFO L134 CoverageAnalysis]: Checked inductivity of 8009 backedges. 1322 proven. 206 refuted. 0 times theorem prover too weak. 6481 trivial. 0 not checked. [2020-10-14 03:45:41,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469963640] [2020-10-14 03:45:41,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:41,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:41,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178051596] [2020-10-14 03:45:41,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:41,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:41,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:41,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:41,235 INFO L87 Difference]: Start difference. First operand 18126 states and 18784 transitions. Second operand 7 states.