/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_label28.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:46:12,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:46:12,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:46:12,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:46:12,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:46:12,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:46:12,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:46:12,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:46:12,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:46:12,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:46:12,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:46:12,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:46:12,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:46:12,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:46:12,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:46:12,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:46:12,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:46:12,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:46:12,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:46:12,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:46:12,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:46:12,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:46:12,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:46:12,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:46:12,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:46:12,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:46:12,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:46:12,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:46:12,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:46:12,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:46:12,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:46:12,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:46:12,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:46:12,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:46:12,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:46:12,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:46:12,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:46:12,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:46:12,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:46:12,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:46:12,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:46:12,254 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 03:46:12,282 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:46:12,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:46:12,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:46:12,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:46:12,285 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:46:12,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:46:12,286 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:46:12,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:46:12,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:46:12,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:46:12,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:46:12,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:46:12,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:46:12,288 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:46:12,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:46:12,288 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:46:12,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:46:12,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:46:12,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:46:12,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:46:12,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:46:12,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:46:12,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:46:12,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:46:12,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:46:12,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:46:12,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:46:12,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:46:12,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:46:12,293 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 03:46:12,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:46:12,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:46:12,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:46:12,650 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:46:12,650 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:46:12,651 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label28.c [2020-10-14 03:46:12,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b352a078/1a8709d68c45426bbdc5f7fff1bc9115/FLAG4df3e2ac9 [2020-10-14 03:46:13,388 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:46:13,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label28.c [2020-10-14 03:46:13,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b352a078/1a8709d68c45426bbdc5f7fff1bc9115/FLAG4df3e2ac9 [2020-10-14 03:46:13,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b352a078/1a8709d68c45426bbdc5f7fff1bc9115 [2020-10-14 03:46:13,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:46:13,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:46:13,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:13,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:46:13,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:46:13,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:13" (1/1) ... [2020-10-14 03:46:13,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c21aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:13, skipping insertion in model container [2020-10-14 03:46:13,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:13" (1/1) ... [2020-10-14 03:46:13,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:46:13,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:46:14,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:14,556 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:46:15,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:15,066 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:46:15,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:15 WrapperNode [2020-10-14 03:46:15,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:15,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:46:15,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:46:15,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:46:15,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:15" (1/1) ... [2020-10-14 03:46:15,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:15" (1/1) ... [2020-10-14 03:46:15,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:15" (1/1) ... [2020-10-14 03:46:15,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:15" (1/1) ... [2020-10-14 03:46:15,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:15" (1/1) ... [2020-10-14 03:46:15,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:15" (1/1) ... [2020-10-14 03:46:15,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:15" (1/1) ... [2020-10-14 03:46:15,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:46:15,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:46:15,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:46:15,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:46:15,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:15" (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 03:46:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:46:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:46:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:46:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:46:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:46:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:46:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:46:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:46:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:46:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:46:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:46:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:46:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:46:17,666 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:46:17,667 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:46:17,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:46:17 BoogieIcfgContainer [2020-10-14 03:46:17,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:46:17,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:46:17,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:46:17,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:46:17,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:46:13" (1/3) ... [2020-10-14 03:46:17,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334026b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:46:17, skipping insertion in model container [2020-10-14 03:46:17,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:15" (2/3) ... [2020-10-14 03:46:17,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334026b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:46:17, skipping insertion in model container [2020-10-14 03:46:17,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:46:17" (3/3) ... [2020-10-14 03:46:17,683 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label28.c [2020-10-14 03:46:17,694 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:46:17,704 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:46:17,719 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:46:17,748 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:46:17,749 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:46:17,749 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:46:17,749 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:46:17,749 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:46:17,749 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:46:17,749 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:46:17,750 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:46:17,778 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:46:17,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 03:46:17,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:17,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:17,791 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:17,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:17,799 INFO L82 PathProgramCache]: Analyzing trace with hash 259572933, now seen corresponding path program 1 times [2020-10-14 03:46:17,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:17,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782217187] [2020-10-14 03:46:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:18,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:18,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:18,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 03:46:18,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:18,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-10-14 03:46:18,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:18,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:46:18,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:46:18,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 03:46:18,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:46:18,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:18,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:18,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:18,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:18,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:18,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:46:18,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:18,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:18,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:18,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:18,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:46:18,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:18,697 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 03:46:18,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782217187] [2020-10-14 03:46:18,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:46:18,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 03:46:18,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121130368] [2020-10-14 03:46:18,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:46:18,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:18,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:46:18,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:46:18,727 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 5 states. [2020-10-14 03:46:24,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:24,318 INFO L93 Difference]: Finished difference Result 1515 states and 2849 transitions. [2020-10-14 03:46:24,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:46:24,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2020-10-14 03:46:24,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:24,352 INFO L225 Difference]: With dead ends: 1515 [2020-10-14 03:46:24,352 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 03:46:24,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:24,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 03:46:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1034. [2020-10-14 03:46:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-10-14 03:46:24,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1485 transitions. [2020-10-14 03:46:24,501 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1485 transitions. Word has length 72 [2020-10-14 03:46:24,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:24,502 INFO L479 AbstractCegarLoop]: Abstraction has 1034 states and 1485 transitions. [2020-10-14 03:46:24,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:46:24,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1485 transitions. [2020-10-14 03:46:24,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-14 03:46:24,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:24,510 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:46:24,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:46:24,510 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:24,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:24,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1133168008, now seen corresponding path program 1 times [2020-10-14 03:46:24,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:24,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657701160] [2020-10-14 03:46:24,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:24,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:24,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:24,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:25,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:25,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 03:46:25,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:46:25,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1132 [2020-10-14 03:46:25,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:25,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:46:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:46:25,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:25,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:25,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:25,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:25,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:25,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:25,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:46:25,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:25,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:25,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:25,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:25,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:25,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:25,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:25,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:46:25,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:25,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 03:46:25,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:25,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:25,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:25,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:25,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:46:25,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:25,965 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 64 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:46:25,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657701160] [2020-10-14 03:46:25,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:25,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:46:25,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502170180] [2020-10-14 03:46:25,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:46:25,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:25,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:46:25,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:46:25,969 INFO L87 Difference]: Start difference. First operand 1034 states and 1485 transitions. Second operand 6 states. [2020-10-14 03:46:30,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:30,842 INFO L93 Difference]: Finished difference Result 2750 states and 4215 transitions. [2020-10-14 03:46:30,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:46:30,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2020-10-14 03:46:30,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:30,854 INFO L225 Difference]: With dead ends: 2750 [2020-10-14 03:46:30,855 INFO L226 Difference]: Without dead ends: 1722 [2020-10-14 03:46:30,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:46:30,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2020-10-14 03:46:30,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1718. [2020-10-14 03:46:30,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1718 states. [2020-10-14 03:46:30,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2470 transitions. [2020-10-14 03:46:30,917 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2470 transitions. Word has length 148 [2020-10-14 03:46:30,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:30,918 INFO L479 AbstractCegarLoop]: Abstraction has 1718 states and 2470 transitions. [2020-10-14 03:46:30,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:46:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2470 transitions. [2020-10-14 03:46:30,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-14 03:46:30,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:30,938 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:30,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:46:30,938 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:30,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:30,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1898623673, now seen corresponding path program 1 times [2020-10-14 03:46:30,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:30,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825838461] [2020-10-14 03:46:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:31,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:31,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:31,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:31,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:33,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:35,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:35,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-14 03:46:35,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:46:35,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 03:46:35,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:35,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:35,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:35,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:46:35,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:46:35,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:36,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:36,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:36,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:36,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:36,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:36,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:46:36,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:36,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:36,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:36,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:36,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:36,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:46:36,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:36,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:36,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:36,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:46:36,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:36,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:46:36,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:36,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:36,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:36,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:36,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:46:36,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:36,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 03:46:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:36,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:36,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:36,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:36,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:36,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 03:46:36,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:36,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:36,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:36,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:36,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:46:36,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 203 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:46:36,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825838461] [2020-10-14 03:46:36,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:36,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:36,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160389338] [2020-10-14 03:46:36,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:36,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:36,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:36,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:36,507 INFO L87 Difference]: Start difference. First operand 1718 states and 2470 transitions. Second operand 7 states. [2020-10-14 03:46:40,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:40,714 INFO L93 Difference]: Finished difference Result 4486 states and 6610 transitions. [2020-10-14 03:46:40,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:46:40,717 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 258 [2020-10-14 03:46:40,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:40,731 INFO L225 Difference]: With dead ends: 4486 [2020-10-14 03:46:40,732 INFO L226 Difference]: Without dead ends: 2423 [2020-10-14 03:46:40,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 03:46:40,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2020-10-14 03:46:40,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2409. [2020-10-14 03:46:40,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2409 states. [2020-10-14 03:46:40,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 2760 transitions. [2020-10-14 03:46:40,860 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 2760 transitions. Word has length 258 [2020-10-14 03:46:40,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:40,860 INFO L479 AbstractCegarLoop]: Abstraction has 2409 states and 2760 transitions. [2020-10-14 03:46:40,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:40,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 2760 transitions. [2020-10-14 03:46:40,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2020-10-14 03:46:40,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:40,870 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 03:46:40,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:46:40,870 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:40,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:40,871 INFO L82 PathProgramCache]: Analyzing trace with hash -746262704, now seen corresponding path program 1 times [2020-10-14 03:46:40,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:40,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958198111] [2020-10-14 03:46:40,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:40,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:41,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:41,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:44,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:45,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:45,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 03:46:45,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:45,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 03:46:45,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:45,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 03:46:45,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:46:45,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:46:46,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:46,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:46,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:46,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:46,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:46,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:46:46,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:46,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:46,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:46,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:46,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:46,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:46,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:46:46,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:46,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:46:46,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:46,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:46,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:46,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:46,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:46:46,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:46:46,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:46:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:46,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:46,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:46,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:46:46,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:46,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 03:46:46,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:46,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:46,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:46,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:46,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:46:46,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:46,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-14 03:46:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:46,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:46,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:46,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:46,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:46,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:46:46,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:46,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:46:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:46,807 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 311 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:46:46,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958198111] [2020-10-14 03:46:46,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:46,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:46,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576712073] [2020-10-14 03:46:46,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:46,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:46,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:46,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:46,821 INFO L87 Difference]: Start difference. First operand 2409 states and 2760 transitions. Second operand 7 states. [2020-10-14 03:46:50,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:50,027 INFO L93 Difference]: Finished difference Result 6557 states and 7565 transitions. [2020-10-14 03:46:50,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:46:50,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 426 [2020-10-14 03:46:50,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:50,049 INFO L225 Difference]: With dead ends: 6557 [2020-10-14 03:46:50,049 INFO L226 Difference]: Without dead ends: 4154 [2020-10-14 03:46:50,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 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 03:46:50,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4154 states. [2020-10-14 03:46:50,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4154 to 3793. [2020-10-14 03:46:50,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3793 states. [2020-10-14 03:46:50,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3793 states to 3793 states and 4205 transitions. [2020-10-14 03:46:50,161 INFO L78 Accepts]: Start accepts. Automaton has 3793 states and 4205 transitions. Word has length 426 [2020-10-14 03:46:50,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:50,162 INFO L479 AbstractCegarLoop]: Abstraction has 3793 states and 4205 transitions. [2020-10-14 03:46:50,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:50,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3793 states and 4205 transitions. [2020-10-14 03:46:50,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2020-10-14 03:46:50,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:50,176 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:50,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:46:50,177 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:50,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:50,177 INFO L82 PathProgramCache]: Analyzing trace with hash 949838583, now seen corresponding path program 1 times [2020-10-14 03:46:50,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:50,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304656049] [2020-10-14 03:46:50,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:50,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:50,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:50,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:55,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:55,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:55,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 503 [2020-10-14 03:46:55,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:55,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5130 [2020-10-14 03:46:55,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:55,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:46:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:46:55,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:55,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:55,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:55,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:55,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:55,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:55,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:46:55,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:55,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:55,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:55,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:55,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:46:55,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:55,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:55,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:55,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:46:55,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:55,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 03:46:55,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:55,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:55,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:55,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:55,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 03:46:55,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:55,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 03:46:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:55,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:55,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:55,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:46:55,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:55,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 03:46:55,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:55,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:55,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:55,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:46:55,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:56,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 03:46:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:56,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:56,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:56,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:56,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:56,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 03:46:56,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:56,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:56,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:46:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:56,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 340 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:46:56,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304656049] [2020-10-14 03:46:56,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:56,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:56,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553099463] [2020-10-14 03:46:56,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:56,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:56,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:56,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:56,505 INFO L87 Difference]: Start difference. First operand 3793 states and 4205 transitions. Second operand 7 states. [2020-10-14 03:46:59,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:59,695 INFO L93 Difference]: Finished difference Result 9393 states and 10895 transitions. [2020-10-14 03:46:59,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:46:59,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 489 [2020-10-14 03:46:59,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:59,724 INFO L225 Difference]: With dead ends: 9393 [2020-10-14 03:46:59,724 INFO L226 Difference]: Without dead ends: 5606 [2020-10-14 03:46:59,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:46:59,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5606 states. [2020-10-14 03:46:59,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5606 to 5520. [2020-10-14 03:46:59,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5520 states. [2020-10-14 03:46:59,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5520 states to 5520 states and 6068 transitions. [2020-10-14 03:46:59,900 INFO L78 Accepts]: Start accepts. Automaton has 5520 states and 6068 transitions. Word has length 489 [2020-10-14 03:46:59,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:59,901 INFO L479 AbstractCegarLoop]: Abstraction has 5520 states and 6068 transitions. [2020-10-14 03:46:59,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:59,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5520 states and 6068 transitions. [2020-10-14 03:46:59,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2020-10-14 03:46:59,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:59,911 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:59,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:46:59,912 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:59,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:59,912 INFO L82 PathProgramCache]: Analyzing trace with hash -396093008, now seen corresponding path program 1 times [2020-10-14 03:46:59,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:59,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038980804] [2020-10-14 03:46:59,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:00,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:00,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:00,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:04,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:04,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:04,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 520 [2020-10-14 03:47:04,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 03:47:04,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:04,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 336 [2020-10-14 03:47:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:47:04,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:05,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:05,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:05,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:05,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:05,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:05,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:05,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:05,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:05,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:05,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:05,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:05,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:47:05,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:05,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:47:05,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:05,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:05,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:05,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:47:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:05,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:05,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:05,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:47:05,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:05,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-14 03:47:05,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:05,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:05,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:05,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:47:05,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:05,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2020-10-14 03:47:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:05,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:05,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:05,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:05,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:05,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 03:47:05,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:05,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:05,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:05,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:47:05,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:06,422 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-14 03:47:06,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038980804] [2020-10-14 03:47:06,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:06,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:06,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483339145] [2020-10-14 03:47:06,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:06,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:06,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:06,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:06,425 INFO L87 Difference]: Start difference. First operand 5520 states and 6068 transitions. Second operand 7 states. [2020-10-14 03:47:09,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:09,621 INFO L93 Difference]: Finished difference Result 11872 states and 13771 transitions. [2020-10-14 03:47:09,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:09,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 506 [2020-10-14 03:47:09,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:09,656 INFO L225 Difference]: With dead ends: 11872 [2020-10-14 03:47:09,656 INFO L226 Difference]: Without dead ends: 6358 [2020-10-14 03:47:09,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 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 03:47:09,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6358 states. [2020-10-14 03:47:09,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6358 to 6220. [2020-10-14 03:47:09,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6220 states. [2020-10-14 03:47:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6220 states to 6220 states and 6841 transitions. [2020-10-14 03:47:09,890 INFO L78 Accepts]: Start accepts. Automaton has 6220 states and 6841 transitions. Word has length 506 [2020-10-14 03:47:09,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:09,891 INFO L479 AbstractCegarLoop]: Abstraction has 6220 states and 6841 transitions. [2020-10-14 03:47:09,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:09,891 INFO L276 IsEmpty]: Start isEmpty. Operand 6220 states and 6841 transitions. [2020-10-14 03:47:09,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2020-10-14 03:47:09,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:09,903 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:09,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:47:09,903 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:09,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:09,904 INFO L82 PathProgramCache]: Analyzing trace with hash 595307155, now seen corresponding path program 1 times [2020-10-14 03:47:09,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:09,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267408344] [2020-10-14 03:47:09,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:10,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:10,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:10,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:14,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:15,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 601 [2020-10-14 03:47:15,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:15,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 03:47:15,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:15,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:15,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:15,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 03:47:15,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:47:15,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:15,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:15,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:15,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:15,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:15,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:15,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:15,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:15,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:15,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:15,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:15,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:15,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:47:15,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:15,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 03:47:15,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:15,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:47:15,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:15,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:47:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:15,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:15,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:47:15,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:15,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-10-14 03:47:15,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:15,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 03:47:15,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:15,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2020-10-14 03:47:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:15,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:15,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:15,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:15,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:47:15,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:15,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:15,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:15,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:15,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:15,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:16,137 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 325 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:47:16,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267408344] [2020-10-14 03:47:16,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:16,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:16,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658920567] [2020-10-14 03:47:16,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:16,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:16,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:16,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:16,140 INFO L87 Difference]: Start difference. First operand 6220 states and 6841 transitions. Second operand 7 states. [2020-10-14 03:47:19,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:19,791 INFO L93 Difference]: Finished difference Result 17687 states and 20335 transitions. [2020-10-14 03:47:19,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:19,792 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 587 [2020-10-14 03:47:19,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:19,871 INFO L225 Difference]: With dead ends: 17687 [2020-10-14 03:47:19,872 INFO L226 Difference]: Without dead ends: 11473 [2020-10-14 03:47:19,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:47:19,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11473 states. [2020-10-14 03:47:20,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11473 to 10990. [2020-10-14 03:47:20,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10990 states. [2020-10-14 03:47:20,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10990 states to 10990 states and 12206 transitions. [2020-10-14 03:47:20,234 INFO L78 Accepts]: Start accepts. Automaton has 10990 states and 12206 transitions. Word has length 587 [2020-10-14 03:47:20,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:20,236 INFO L479 AbstractCegarLoop]: Abstraction has 10990 states and 12206 transitions. [2020-10-14 03:47:20,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:20,236 INFO L276 IsEmpty]: Start isEmpty. Operand 10990 states and 12206 transitions. [2020-10-14 03:47:20,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2020-10-14 03:47:20,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:20,256 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:20,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:47:20,257 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:20,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:20,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1439848014, now seen corresponding path program 1 times [2020-10-14 03:47:20,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:20,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287210163] [2020-10-14 03:47:20,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:20,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:21,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:21,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:25,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 673 [2020-10-14 03:47:25,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:25,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-14 03:47:25,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:25,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:25,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:25,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 211 [2020-10-14 03:47:25,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:47:25,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:25,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:25,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:25,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:25,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:25,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:25,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:25,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:25,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:25,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:25,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:25,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:47:25,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:25,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:47:25,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:25,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:25,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:25,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:25,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:47:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:25,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:25,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:47:25,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:25,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:47:25,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:25,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:25,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:25,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:25,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:47:25,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:25,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-14 03:47:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:25,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:26,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:26,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:47:26,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:26,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-10-14 03:47:26,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:26,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:26,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:26,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:26,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 03:47:26,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:26,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2020-10-14 03:47:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:26,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:26,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:26,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:26,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:26,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:47:26,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:26,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:26,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:26,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:26,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:26,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:26,602 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 466 proven. 109 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2020-10-14 03:47:26,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287210163] [2020-10-14 03:47:26,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:26,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:26,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741005737] [2020-10-14 03:47:26,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:26,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:26,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:26,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:26,605 INFO L87 Difference]: Start difference. First operand 10990 states and 12206 transitions. Second operand 7 states. [2020-10-14 03:47:30,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:30,066 INFO L93 Difference]: Finished difference Result 25201 states and 29180 transitions. [2020-10-14 03:47:30,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:30,067 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 657 [2020-10-14 03:47:30,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:30,127 INFO L225 Difference]: With dead ends: 25201 [2020-10-14 03:47:30,127 INFO L226 Difference]: Without dead ends: 14217 [2020-10-14 03:47:30,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:47:30,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14217 states. [2020-10-14 03:47:30,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14217 to 13367. [2020-10-14 03:47:30,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13367 states. [2020-10-14 03:47:30,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13367 states to 13367 states and 14757 transitions. [2020-10-14 03:47:30,541 INFO L78 Accepts]: Start accepts. Automaton has 13367 states and 14757 transitions. Word has length 657 [2020-10-14 03:47:30,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:30,542 INFO L479 AbstractCegarLoop]: Abstraction has 13367 states and 14757 transitions. [2020-10-14 03:47:30,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:30,542 INFO L276 IsEmpty]: Start isEmpty. Operand 13367 states and 14757 transitions. [2020-10-14 03:47:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2020-10-14 03:47:30,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:30,568 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:30,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:47:30,568 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:30,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:30,569 INFO L82 PathProgramCache]: Analyzing trace with hash 71804223, now seen corresponding path program 1 times [2020-10-14 03:47:30,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:30,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077051454] [2020-10-14 03:47:30,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:30,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:30,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:30,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:31,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:35,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:35,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 691 [2020-10-14 03:47:35,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:35,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 03:47:35,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:35,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:35,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:35,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 03:47:35,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:47:35,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:35,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:35,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:35,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:35,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:35,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:35,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:35,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:35,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:35,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:35,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:35,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:36,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:36,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:47:36,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 03:47:36,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:36,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-14 03:47:36,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:36,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 03:47:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:36,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:36,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:36,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:47:36,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:36,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-14 03:47:36,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:36,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 03:47:36,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:36,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 03:47:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:36,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:36,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:36,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:36,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:36,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:47:36,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:36,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:36,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:36,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:36,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:36,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 415 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:47:37,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077051454] [2020-10-14 03:47:37,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:37,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:47:37,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219191165] [2020-10-14 03:47:37,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:47:37,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:37,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:47:37,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:47:37,129 INFO L87 Difference]: Start difference. First operand 13367 states and 14757 transitions. Second operand 8 states. [2020-10-14 03:47:41,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:41,183 INFO L93 Difference]: Finished difference Result 29434 states and 32830 transitions. [2020-10-14 03:47:41,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:41,184 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 677 [2020-10-14 03:47:41,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:41,236 INFO L225 Difference]: With dead ends: 29434 [2020-10-14 03:47:41,237 INFO L226 Difference]: Without dead ends: 16073 [2020-10-14 03:47:41,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:47:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16073 states. [2020-10-14 03:47:41,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16073 to 15054. [2020-10-14 03:47:41,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15054 states. [2020-10-14 03:47:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15054 states to 15054 states and 16328 transitions. [2020-10-14 03:47:41,516 INFO L78 Accepts]: Start accepts. Automaton has 15054 states and 16328 transitions. Word has length 677 [2020-10-14 03:47:41,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:41,517 INFO L479 AbstractCegarLoop]: Abstraction has 15054 states and 16328 transitions. [2020-10-14 03:47:41,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:47:41,517 INFO L276 IsEmpty]: Start isEmpty. Operand 15054 states and 16328 transitions. [2020-10-14 03:47:41,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 861 [2020-10-14 03:47:41,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:41,548 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:41,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:47:41,549 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:41,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:41,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1961031621, now seen corresponding path program 1 times [2020-10-14 03:47:41,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:41,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597433438] [2020-10-14 03:47:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:41,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:42,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:42,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:43,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:46,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:46,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:46,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 876 [2020-10-14 03:47:46,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:46,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 03:47:46,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:46,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:47:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 03:47:46,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:46,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:46,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:46,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:46,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:46,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:46,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:46,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:46,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:46,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:46,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:46,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:46,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:46,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:46,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:46,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:46,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:46,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:46,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 03:47:46,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:46,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:46,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:46,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:47:46,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:47,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:47,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:47,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:47:47,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:47,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 03:47:47,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:47,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-14 03:47:47,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:47,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:47:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:47,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:47,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:47:47,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:47,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:47:47,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:47,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:47,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:47,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:47:47,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:47,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:47,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-14 03:47:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:47,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:47,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:47:47,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:47,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:47:47,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:47,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:47,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:47,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:47:47,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:47,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:47,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 460 proven. 262 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2020-10-14 03:47:47,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597433438] [2020-10-14 03:47:47,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:47,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:47,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245186241] [2020-10-14 03:47:47,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:47,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:47,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:47,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:47,920 INFO L87 Difference]: Start difference. First operand 15054 states and 16328 transitions. Second operand 7 states. [2020-10-14 03:47:51,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:51,446 INFO L93 Difference]: Finished difference Result 34729 states and 38759 transitions. [2020-10-14 03:47:51,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:51,447 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 860 [2020-10-14 03:47:51,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:51,511 INFO L225 Difference]: With dead ends: 34729 [2020-10-14 03:47:51,511 INFO L226 Difference]: Without dead ends: 19681 [2020-10-14 03:47:51,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:51,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19681 states. [2020-10-14 03:47:51,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19681 to 18101. [2020-10-14 03:47:51,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18101 states. [2020-10-14 03:47:51,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18101 states to 18101 states and 19730 transitions. [2020-10-14 03:47:51,945 INFO L78 Accepts]: Start accepts. Automaton has 18101 states and 19730 transitions. Word has length 860 [2020-10-14 03:47:51,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:51,946 INFO L479 AbstractCegarLoop]: Abstraction has 18101 states and 19730 transitions. [2020-10-14 03:47:51,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:51,947 INFO L276 IsEmpty]: Start isEmpty. Operand 18101 states and 19730 transitions. [2020-10-14 03:47:51,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 973 [2020-10-14 03:47:51,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:51,986 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:51,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:47:51,987 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:51,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:51,987 INFO L82 PathProgramCache]: Analyzing trace with hash 460680759, now seen corresponding path program 1 times [2020-10-14 03:47:51,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:51,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629258532] [2020-10-14 03:47:51,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:52,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:52,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:52,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:52,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:54,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 992 [2020-10-14 03:47:57,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:57,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 03:47:57,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:57,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 447 [2020-10-14 03:47:57,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:47:57,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:57,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:57,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:47:57,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:57,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:57,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:57,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:47:57,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:57,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:57,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:47:57,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:47:57,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:57,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:57,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:57,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:57,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:47:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:47:57,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 03:47:57,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:57,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:57,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:47:57,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:57,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-14 03:47:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:47:58,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:58,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-14 03:47:58,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:58,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:47:58,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:58,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 691 [2020-10-14 03:47:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:58,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:58,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:58,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:58,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:47:58,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:58,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:58,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:58,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 801 [2020-10-14 03:47:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:58,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:58,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:47:58,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:58,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:47:58,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:58,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:58,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:58,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:47:58,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:58,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1972 backedges. 848 proven. 213 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2020-10-14 03:47:58,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629258532] [2020-10-14 03:47:58,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:58,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:58,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565749295] [2020-10-14 03:47:58,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:58,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:58,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:58,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:58,945 INFO L87 Difference]: Start difference. First operand 18101 states and 19730 transitions. Second operand 7 states. [2020-10-14 03:48:02,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:02,094 INFO L93 Difference]: Finished difference Result 36408 states and 40461 transitions. [2020-10-14 03:48:02,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:02,096 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 972 [2020-10-14 03:48:02,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:02,147 INFO L225 Difference]: With dead ends: 36408 [2020-10-14 03:48:02,147 INFO L226 Difference]: Without dead ends: 18650 [2020-10-14 03:48:02,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:02,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18650 states. [2020-10-14 03:48:02,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18650 to 18438. [2020-10-14 03:48:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18438 states. [2020-10-14 03:48:02,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18438 states to 18438 states and 20070 transitions. [2020-10-14 03:48:02,505 INFO L78 Accepts]: Start accepts. Automaton has 18438 states and 20070 transitions. Word has length 972 [2020-10-14 03:48:02,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:02,507 INFO L479 AbstractCegarLoop]: Abstraction has 18438 states and 20070 transitions. [2020-10-14 03:48:02,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:02,508 INFO L276 IsEmpty]: Start isEmpty. Operand 18438 states and 20070 transitions. [2020-10-14 03:48:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2020-10-14 03:48:02,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:02,548 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:02,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:48:02,548 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:02,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:02,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1578097918, now seen corresponding path program 1 times [2020-10-14 03:48:02,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:02,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075372408] [2020-10-14 03:48:02,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:02,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:02,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:03,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:04,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:07,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:07,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1071 [2020-10-14 03:48:07,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:07,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 03:48:07,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:07,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:07,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:07,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:48:07,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:48:07,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:07,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:07,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:07,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:07,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:07,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:07,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:07,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:07,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:07,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:07,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:07,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:07,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:07,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:07,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:07,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:48:07,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:07,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:07,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:07,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:07,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:07,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:08,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:08,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:48:08,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:08,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:48:08,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:08,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:48:08,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:48:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:08,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:08,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:48:08,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:08,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:48:08,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:08,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:48:08,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-14 03:48:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:08,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:08,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:48:08,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:08,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 03:48:08,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:08,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:48:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:08,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:08,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:08,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:48:08,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:08,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:48:08,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:08,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:08,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 768 [2020-10-14 03:48:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:08,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:08,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:08,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:08,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:48:08,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:08,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:08,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 878 [2020-10-14 03:48:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:08,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:08,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:48:08,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:48:08,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:08,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:48:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:09,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1972 backedges. 597 proven. 325 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2020-10-14 03:48:09,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075372408] [2020-10-14 03:48:09,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:09,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:09,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764638468] [2020-10-14 03:48:09,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:09,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:09,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:09,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:09,054 INFO L87 Difference]: Start difference. First operand 18438 states and 20070 transitions. Second operand 7 states. [2020-10-14 03:48:12,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:12,310 INFO L93 Difference]: Finished difference Result 36537 states and 39795 transitions. [2020-10-14 03:48:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:48:12,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1049 [2020-10-14 03:48:12,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:12,358 INFO L225 Difference]: With dead ends: 36537 [2020-10-14 03:48:12,359 INFO L226 Difference]: Without dead ends: 18442 [2020-10-14 03:48:12,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 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 03:48:12,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18442 states. [2020-10-14 03:48:12,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18442 to 18436. [2020-10-14 03:48:12,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18436 states. [2020-10-14 03:48:12,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18436 states to 18436 states and 19525 transitions. [2020-10-14 03:48:12,691 INFO L78 Accepts]: Start accepts. Automaton has 18436 states and 19525 transitions. Word has length 1049 [2020-10-14 03:48:12,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:12,691 INFO L479 AbstractCegarLoop]: Abstraction has 18436 states and 19525 transitions. [2020-10-14 03:48:12,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:12,692 INFO L276 IsEmpty]: Start isEmpty. Operand 18436 states and 19525 transitions. [2020-10-14 03:48:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1097 [2020-10-14 03:48:12,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:12,727 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:12,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:48:12,727 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:12,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:12,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1361016629, now seen corresponding path program 1 times [2020-10-14 03:48:12,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:12,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737822756] [2020-10-14 03:48:12,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:12,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:13,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:13,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:13,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:13,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:17,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:17,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1116 [2020-10-14 03:48:17,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:17,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 03:48:17,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:17,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:17,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:17,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:48:17,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:48:17,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:18,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:18,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:18,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:18,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:18,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:18,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:48:18,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:18,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:18,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:48:18,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:48:18,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:18,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:18,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:48:18,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:48:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:48:18,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 03:48:18,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:18,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:18,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:48:18,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 03:48:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:48:18,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:48:18,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:18,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:48:18,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:18,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2020-10-14 03:48:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:18,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:48:18,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:18,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2020-10-14 03:48:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-14 03:48:18,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 03:48:18,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 282 [2020-10-14 03:48:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:19,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 652 proven. 389 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2020-10-14 03:48:19,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737822756] [2020-10-14 03:48:19,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:19,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:19,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807455740] [2020-10-14 03:48:19,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:19,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:19,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:19,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:19,493 INFO L87 Difference]: Start difference. First operand 18436 states and 19525 transitions. Second operand 7 states. [2020-10-14 03:48:22,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:22,616 INFO L93 Difference]: Finished difference Result 38909 states and 41330 transitions. [2020-10-14 03:48:22,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:22,618 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1096 [2020-10-14 03:48:22,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:22,658 INFO L225 Difference]: With dead ends: 38909 [2020-10-14 03:48:22,659 INFO L226 Difference]: Without dead ends: 20816 [2020-10-14 03:48:22,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:48:22,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20816 states. [2020-10-14 03:48:22,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20816 to 20136. [2020-10-14 03:48:22,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20136 states. [2020-10-14 03:48:22,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20136 states to 20136 states and 21376 transitions. [2020-10-14 03:48:23,000 INFO L78 Accepts]: Start accepts. Automaton has 20136 states and 21376 transitions. Word has length 1096 [2020-10-14 03:48:23,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:23,001 INFO L479 AbstractCegarLoop]: Abstraction has 20136 states and 21376 transitions. [2020-10-14 03:48:23,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:23,001 INFO L276 IsEmpty]: Start isEmpty. Operand 20136 states and 21376 transitions. [2020-10-14 03:48:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2020-10-14 03:48:23,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:23,156 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:23,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:48:23,156 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:23,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:23,157 INFO L82 PathProgramCache]: Analyzing trace with hash 985404958, now seen corresponding path program 1 times [2020-10-14 03:48:23,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:23,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214751646] [2020-10-14 03:48:23,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:23,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:23,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:23,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:28,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:28,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1167 [2020-10-14 03:48:28,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:28,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-14 03:48:28,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:28,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 622 [2020-10-14 03:48:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:48:28,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:28,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:28,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:28,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:28,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:28,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:28,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:28,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:28,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:28,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:28,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:28,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:28,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:28,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:28,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:28,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:28,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:28,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:28,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:48:28,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:28,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:28,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:28,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:28,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:28,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:28,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:28,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:28,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:28,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:48:28,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:28,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:48:28,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:28,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:28,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:28,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:48:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:28,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:28,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:28,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:48:28,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:28,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:48:28,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:28,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:48:28,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:28,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:48:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:28,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:48:29,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-14 03:48:29,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:29,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:29,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:48:29,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 866 [2020-10-14 03:48:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:29,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:48:29,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 976 [2020-10-14 03:48:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:48:29,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:48:29,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:48:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:30,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2311 backedges. 997 proven. 213 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2020-10-14 03:48:30,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214751646] [2020-10-14 03:48:30,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:30,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:30,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136712495] [2020-10-14 03:48:30,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:30,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:30,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:30,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:30,323 INFO L87 Difference]: Start difference. First operand 20136 states and 21376 transitions. Second operand 7 states. [2020-10-14 03:48:33,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:33,187 INFO L93 Difference]: Finished difference Result 41616 states and 44174 transitions. [2020-10-14 03:48:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:48:33,188 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1147 [2020-10-14 03:48:33,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:33,222 INFO L225 Difference]: With dead ends: 41616 [2020-10-14 03:48:33,222 INFO L226 Difference]: Without dead ends: 21823 [2020-10-14 03:48:33,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 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 03:48:33,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21823 states. [2020-10-14 03:48:33,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21823 to 20812. [2020-10-14 03:48:33,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20812 states. [2020-10-14 03:48:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20812 states to 20812 states and 22043 transitions. [2020-10-14 03:48:33,558 INFO L78 Accepts]: Start accepts. Automaton has 20812 states and 22043 transitions. Word has length 1147 [2020-10-14 03:48:33,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:33,559 INFO L479 AbstractCegarLoop]: Abstraction has 20812 states and 22043 transitions. [2020-10-14 03:48:33,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:33,559 INFO L276 IsEmpty]: Start isEmpty. Operand 20812 states and 22043 transitions. [2020-10-14 03:48:33,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1155 [2020-10-14 03:48:33,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:33,584 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:33,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:48:33,584 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:33,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:33,585 INFO L82 PathProgramCache]: Analyzing trace with hash -701538843, now seen corresponding path program 1 times [2020-10-14 03:48:33,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:33,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965866774] [2020-10-14 03:48:33,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:33,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:34,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:34,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:38,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:38,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1170 [2020-10-14 03:48:38,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:38,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 03:48:38,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:38,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:38,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 03:48:38,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:48:38,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 632 [2020-10-14 03:48:38,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:38,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:38,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:38,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:38,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:38,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:38,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:38,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:38,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:38,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:38,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:38,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:38,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:38,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:38,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:38,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:38,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:38,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:48:38,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:38,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:38,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:38,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:39,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:39,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:39,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:48:39,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:39,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 03:48:39,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:39,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:39,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:39,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:48:39,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:39,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:48:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:39,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:39,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:39,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:39,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:39,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:48:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-14 03:48:39,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:39,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-14 03:48:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:39,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2020-10-14 03:48:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:39,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:39,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:40,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:40,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-14 03:48:40,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:48:40,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-14 03:48:40,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:40,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:40,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:40,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:40,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:48:40,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:40,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 271 proven. 4 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2020-10-14 03:48:40,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965866774] [2020-10-14 03:48:40,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:40,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:48:40,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578273973] [2020-10-14 03:48:40,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:48:40,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:40,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:48:40,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:48:40,630 INFO L87 Difference]: Start difference. First operand 20812 states and 22043 transitions. Second operand 5 states. [2020-10-14 03:48:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:43,098 INFO L93 Difference]: Finished difference Result 41281 states and 43737 transitions. [2020-10-14 03:48:43,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:48:43,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1154 [2020-10-14 03:48:43,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:43,136 INFO L225 Difference]: With dead ends: 41281 [2020-10-14 03:48:43,137 INFO L226 Difference]: Without dead ends: 20812 [2020-10-14 03:48:43,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 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 03:48:43,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20812 states. [2020-10-14 03:48:43,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20812 to 20132. [2020-10-14 03:48:43,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20132 states. [2020-10-14 03:48:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20132 states to 20132 states and 20997 transitions. [2020-10-14 03:48:43,581 INFO L78 Accepts]: Start accepts. Automaton has 20132 states and 20997 transitions. Word has length 1154 [2020-10-14 03:48:43,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:43,582 INFO L479 AbstractCegarLoop]: Abstraction has 20132 states and 20997 transitions. [2020-10-14 03:48:43,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:48:43,582 INFO L276 IsEmpty]: Start isEmpty. Operand 20132 states and 20997 transitions. [2020-10-14 03:48:43,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1182 [2020-10-14 03:48:43,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:43,607 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:43,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:48:43,608 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:43,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:43,608 INFO L82 PathProgramCache]: Analyzing trace with hash 112031046, now seen corresponding path program 1 times [2020-10-14 03:48:43,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:43,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264292620] [2020-10-14 03:48:43,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:43,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:44,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:44,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:44,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:48,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:48,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1203 [2020-10-14 03:48:48,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:48,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:48:48,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:48,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:48:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 03:48:48,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:48,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:48,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:48,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:48,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:48,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:48,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:48,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:48,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:48,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:48,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:48,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:48,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:48,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:48,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:48,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:48:48,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:48,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:48,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:48,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:48,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:48:48,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:48:49,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 03:48:49,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 03:48:49,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-14 03:48:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:48:49,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:48:49,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:49,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:48:49,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:49,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 03:48:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:48:49,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-14 03:48:49,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:49,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:48:49,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:49,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:48:49,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:48:49,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:49,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 900 [2020-10-14 03:48:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:49,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:48:49,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:49,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1010 [2020-10-14 03:48:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:48:49,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:48:49,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:48:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:49,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:50,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 604 proven. 523 refuted. 0 times theorem prover too weak. 1234 trivial. 0 not checked. [2020-10-14 03:48:50,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264292620] [2020-10-14 03:48:50,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:50,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:50,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468675994] [2020-10-14 03:48:50,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:50,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:50,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:50,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:50,855 INFO L87 Difference]: Start difference. First operand 20132 states and 20997 transitions. Second operand 7 states. [2020-10-14 03:48:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:54,330 INFO L93 Difference]: Finished difference Result 40264 states and 42000 transitions. [2020-10-14 03:48:54,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:48:54,333 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1181 [2020-10-14 03:48:54,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:54,362 INFO L225 Difference]: With dead ends: 40264 [2020-10-14 03:48:54,362 INFO L226 Difference]: Without dead ends: 20475 [2020-10-14 03:48:54,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 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 03:48:54,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20475 states. [2020-10-14 03:48:54,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20475 to 20132. [2020-10-14 03:48:54,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20132 states. [2020-10-14 03:48:54,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20132 states to 20132 states and 20993 transitions. [2020-10-14 03:48:54,620 INFO L78 Accepts]: Start accepts. Automaton has 20132 states and 20993 transitions. Word has length 1181 [2020-10-14 03:48:54,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:54,620 INFO L479 AbstractCegarLoop]: Abstraction has 20132 states and 20993 transitions. [2020-10-14 03:48:54,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:54,621 INFO L276 IsEmpty]: Start isEmpty. Operand 20132 states and 20993 transitions. [2020-10-14 03:48:54,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1314 [2020-10-14 03:48:54,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:54,648 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:48:54,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:48:54,648 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:54,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:54,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1113014640, now seen corresponding path program 1 times [2020-10-14 03:48:54,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:54,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217241916] [2020-10-14 03:48:54,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:54,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:59,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1333 [2020-10-14 03:48:59,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:59,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 03:48:59,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:59,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:59,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:59,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:48:59,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:48:59,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:59,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:59,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:59,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:59,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:59,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:59,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:59,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:59,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:59,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:59,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:59,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:59,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:59,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:59,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:59,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:59,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:48:59,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:59,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:00,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:00,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:00,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:00,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:00,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:00,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:00,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:00,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:00,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:00,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 03:49:00,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:00,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:49:00,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:00,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:49:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:00,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:00,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:00,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:00,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:00,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-14 03:49:00,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:00,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:00,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:00,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:00,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:49:00,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:00,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2020-10-14 03:49:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:00,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:01,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:01,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-14 03:49:01,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:01,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 03:49:01,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:01,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:01,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:01,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 336 [2020-10-14 03:49:01,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:01,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:01,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:01,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:01,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:01,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 03:49:01,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:01,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:49:01,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:01,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:01,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:01,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:01,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:01,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:01,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1142 [2020-10-14 03:49:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:01,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:01,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:01,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:49:01,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:01,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:49:01,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:01,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:49:01,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:01,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2322 backedges. 862 proven. 376 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2020-10-14 03:49:02,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217241916] [2020-10-14 03:49:02,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:02,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:02,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119725114] [2020-10-14 03:49:02,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:02,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:02,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:02,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:02,254 INFO L87 Difference]: Start difference. First operand 20132 states and 20993 transitions. Second operand 7 states. [2020-10-14 03:49:05,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:05,817 INFO L93 Difference]: Finished difference Result 40498 states and 42709 transitions. [2020-10-14 03:49:05,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:49:05,821 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1313 [2020-10-14 03:49:05,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:05,858 INFO L225 Difference]: With dead ends: 40498 [2020-10-14 03:49:05,858 INFO L226 Difference]: Without dead ends: 20709 [2020-10-14 03:49:05,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 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 03:49:05,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20709 states. [2020-10-14 03:49:06,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20709 to 20469. [2020-10-14 03:49:06,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20469 states. [2020-10-14 03:49:06,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20469 states to 20469 states and 21314 transitions. [2020-10-14 03:49:06,171 INFO L78 Accepts]: Start accepts. Automaton has 20469 states and 21314 transitions. Word has length 1313 [2020-10-14 03:49:06,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:06,172 INFO L479 AbstractCegarLoop]: Abstraction has 20469 states and 21314 transitions. [2020-10-14 03:49:06,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:06,172 INFO L276 IsEmpty]: Start isEmpty. Operand 20469 states and 21314 transitions. [2020-10-14 03:49:06,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1332 [2020-10-14 03:49:06,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:06,203 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:06,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:49:06,203 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:06,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:06,204 INFO L82 PathProgramCache]: Analyzing trace with hash 34812114, now seen corresponding path program 1 times [2020-10-14 03:49:06,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:06,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834041626] [2020-10-14 03:49:06,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:06,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:06,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:07,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1357 [2020-10-14 03:49:11,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:11,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-14 03:49:11,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:11,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 03:49:11,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 03:49:11,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:11,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:11,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:11,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:11,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:49:11,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:11,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:11,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:11,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:11,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:49:11,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:11,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 03:49:11,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:11,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:11,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:11,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:11,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 03:49:11,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:11,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:49:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:11,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:49:11,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:11,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 03:49:11,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:12,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:12,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:12,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:12,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:49:12,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:12,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:49:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:12,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:12,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:12,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:49:12,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:49:12,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:12,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 03:49:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:12,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:12,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 03:49:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:12,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:12,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:12,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:49:12,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:12,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:49:12,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:12,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:12,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:12,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:49:12,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:12,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:12,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 03:49:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:12,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:12,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:12,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:49:12,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:12,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:49:12,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:12,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:49:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:12,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:12,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 03:49:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:12,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:12,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:12,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:49:12,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 03:49:12,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:12,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:49:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:12,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:12,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:12,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:12,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:49:12,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:12,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:49:12,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:12,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:12,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:12,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:12,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:12,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:12,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-14 03:49:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:12,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:12,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:12,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:12,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:12,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:49:12,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:12,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:12,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:12,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:49:12,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:12,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:12,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1160 [2020-10-14 03:49:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:12,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:12,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:12,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:49:12,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:12,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:49:12,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:12,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:12,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:12,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:49:12,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:12,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 703 proven. 677 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2020-10-14 03:49:13,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834041626] [2020-10-14 03:49:13,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:13,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:13,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442750036] [2020-10-14 03:49:13,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:13,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:13,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:13,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:13,817 INFO L87 Difference]: Start difference. First operand 20469 states and 21314 transitions. Second operand 7 states. [2020-10-14 03:49:17,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:17,179 INFO L93 Difference]: Finished difference Result 40603 states and 42292 transitions. [2020-10-14 03:49:17,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:49:17,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1331 [2020-10-14 03:49:17,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:17,209 INFO L225 Difference]: With dead ends: 40603 [2020-10-14 03:49:17,209 INFO L226 Difference]: Without dead ends: 20477 [2020-10-14 03:49:17,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:49:17,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20477 states. [2020-10-14 03:49:17,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20477 to 20132. [2020-10-14 03:49:17,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20132 states. [2020-10-14 03:49:17,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20132 states to 20132 states and 20948 transitions. [2020-10-14 03:49:17,436 INFO L78 Accepts]: Start accepts. Automaton has 20132 states and 20948 transitions. Word has length 1331 [2020-10-14 03:49:17,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:17,436 INFO L479 AbstractCegarLoop]: Abstraction has 20132 states and 20948 transitions. [2020-10-14 03:49:17,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:17,436 INFO L276 IsEmpty]: Start isEmpty. Operand 20132 states and 20948 transitions. [2020-10-14 03:49:17,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1342 [2020-10-14 03:49:17,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:17,464 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:17,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:49:17,464 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:17,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:17,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1011235358, now seen corresponding path program 1 times [2020-10-14 03:49:17,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:17,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905044853] [2020-10-14 03:49:17,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:17,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:17,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:17,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1367 [2020-10-14 03:49:22,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:49:22,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-14 03:49:22,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:22,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:49:22,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 03:49:22,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:22,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:22,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:22,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:22,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 03:49:22,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:22,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:22,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:49:22,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:23,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:23,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:49:23,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:23,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-14 03:49:23,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:23,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:23,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:23,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:23,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:49:23,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:23,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2020-10-14 03:49:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:23,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:23,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:49:23,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:23,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:49:23,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:23,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 03:49:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:23,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:23,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2020-10-14 03:49:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:23,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:23,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:49:23,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:23,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:49:23,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:23,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:23,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:23,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:49:23,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:23,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:23,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 618 [2020-10-14 03:49:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:23,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:23,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:49:23,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:23,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:49:23,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:23,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:49:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:23,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:23,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-14 03:49:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:23,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:23,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:49:23,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:23,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 03:49:23,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:23,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:23,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:23,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:49:23,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:23,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:23,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:23,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:23,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:49:23,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:23,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:49:23,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:23,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:23,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:23,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1060 [2020-10-14 03:49:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:23,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:23,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:23,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:23,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:49:23,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:23,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:49:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:23,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:23,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1170 [2020-10-14 03:49:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:23,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:23,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:49:23,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:23,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:49:23,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:23,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:23,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:23,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:49:23,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:23,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3622 backedges. 703 proven. 677 refuted. 0 times theorem prover too weak. 2242 trivial. 0 not checked. [2020-10-14 03:49:24,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905044853] [2020-10-14 03:49:24,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:24,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:49:24,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884687061] [2020-10-14 03:49:24,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:49:24,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:24,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:49:24,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:49:24,684 INFO L87 Difference]: Start difference. First operand 20132 states and 20948 transitions. Second operand 8 states. [2020-10-14 03:49:30,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:30,203 INFO L93 Difference]: Finished difference Result 42164 states and 44354 transitions. [2020-10-14 03:49:30,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 03:49:30,204 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1341 [2020-10-14 03:49:30,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:30,241 INFO L225 Difference]: With dead ends: 42164 [2020-10-14 03:49:30,241 INFO L226 Difference]: Without dead ends: 22375 [2020-10-14 03:49:30,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 03:49:30,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22375 states. [2020-10-14 03:49:30,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22375 to 19112. [2020-10-14 03:49:30,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19112 states. [2020-10-14 03:49:30,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19112 states to 19112 states and 19801 transitions. [2020-10-14 03:49:30,510 INFO L78 Accepts]: Start accepts. Automaton has 19112 states and 19801 transitions. Word has length 1341 [2020-10-14 03:49:30,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:30,511 INFO L479 AbstractCegarLoop]: Abstraction has 19112 states and 19801 transitions. [2020-10-14 03:49:30,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:49:30,511 INFO L276 IsEmpty]: Start isEmpty. Operand 19112 states and 19801 transitions. [2020-10-14 03:49:30,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1393 [2020-10-14 03:49:30,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:30,542 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:30,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:49:30,542 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:30,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:30,543 INFO L82 PathProgramCache]: Analyzing trace with hash 220296491, now seen corresponding path program 1 times [2020-10-14 03:49:30,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:30,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137957528] [2020-10-14 03:49:30,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:30,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:31,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:31,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:35,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:35,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1418 [2020-10-14 03:49:35,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:49:35,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 03:49:35,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:35,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-14 03:49:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 03:49:35,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:35,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:35,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:35,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:35,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:35,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:35,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:35,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:35,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:35,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:35,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:35,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:35,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:35,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:35,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:35,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:35,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:49:35,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:35,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 03:49:35,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:35,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:35,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:36,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:49:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:36,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:36,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:49:36,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:36,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 03:49:36,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:36,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:36,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:36,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:36,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:49:36,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:36,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:49:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:36,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:36,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:49:36,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:36,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 03:49:36,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:36,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:36,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:36,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:36,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:49:36,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:36,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 03:49:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:36,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:36,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:49:36,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:36,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:49:36,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:36,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:49:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:36,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:36,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 03:49:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:36,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:36,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:49:36,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:36,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:49:36,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:36,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:36,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:36,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:49:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:36,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:36,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 03:49:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:36,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:36,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:49:36,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:36,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 03:49:36,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:36,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:36,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:36,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:49:36,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:36,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:36,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:36,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:36,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:49:36,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:36,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:49:36,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:36,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:36,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:36,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:36,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:36,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:36,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-14 03:49:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:36,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:36,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:36,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:36,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:49:36,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:36,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:36,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:36,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:49:36,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:36,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1221 [2020-10-14 03:49:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:36,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:36,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:49:36,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:36,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:49:36,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:36,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:36,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:36,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:49:36,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:36,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:37,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3734 backedges. 817 proven. 518 refuted. 0 times theorem prover too weak. 2399 trivial. 0 not checked. [2020-10-14 03:49:37,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137957528] [2020-10-14 03:49:37,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:37,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:37,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924504922] [2020-10-14 03:49:37,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:37,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:37,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:37,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:37,923 INFO L87 Difference]: Start difference. First operand 19112 states and 19801 transitions. Second operand 7 states. [2020-10-14 03:49:41,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:41,359 INFO L93 Difference]: Finished difference Result 35692 states and 37421 transitions. [2020-10-14 03:49:41,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:49:41,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1392 [2020-10-14 03:49:41,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:41,394 INFO L225 Difference]: With dead ends: 35692 [2020-10-14 03:49:41,394 INFO L226 Difference]: Without dead ends: 19310 [2020-10-14 03:49:41,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 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 03:49:41,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19310 states. [2020-10-14 03:49:41,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19310 to 19112. [2020-10-14 03:49:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19112 states. [2020-10-14 03:49:41,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19112 states to 19112 states and 19797 transitions. [2020-10-14 03:49:41,677 INFO L78 Accepts]: Start accepts. Automaton has 19112 states and 19797 transitions. Word has length 1392 [2020-10-14 03:49:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:41,678 INFO L479 AbstractCegarLoop]: Abstraction has 19112 states and 19797 transitions. [2020-10-14 03:49:41,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:41,678 INFO L276 IsEmpty]: Start isEmpty. Operand 19112 states and 19797 transitions. [2020-10-14 03:49:41,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1395 [2020-10-14 03:49:41,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:41,706 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:41,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:49:41,706 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:41,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:41,707 INFO L82 PathProgramCache]: Analyzing trace with hash -2115967481, now seen corresponding path program 1 times [2020-10-14 03:49:41,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:41,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466568240] [2020-10-14 03:49:41,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:42,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:42,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:42,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:46,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:46,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1420 [2020-10-14 03:49:46,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:46,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 03:49:46,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:46,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:46,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:46,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-14 03:49:46,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 03:49:46,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:47,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:47,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:47,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:47,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:47,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:47,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:47,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:47,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:47,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:47,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:47,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:47,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:47,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:49:47,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:47,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:49:47,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:47,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:47,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:47,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:47,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:47,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:47,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:49:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:47,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:47,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:47,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 03:49:47,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:47,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 03:49:47,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:47,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 03:49:47,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:47,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 03:49:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:47,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:47,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:47,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:49:47,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:47,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 03:49:47,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:47,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:47,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:47,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:47,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:49:47,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:47,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 03:49:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:47,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:47,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:47,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:49:47,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:47,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:49:47,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:47,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:47,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:47,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:49:47,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:47,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:47,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-14 03:49:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:47,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:47,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:47,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:49:47,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:47,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:49:47,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:47,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:49:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:47,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:47,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-14 03:49:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:47,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:48,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:48,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:49:48,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:48,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 03:49:48,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:48,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:48,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:48,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:49:48,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:48,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:48,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:48,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:48,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:48,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:49:48,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:48,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:49:48,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:48,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:48,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:48,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-14 03:49:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:48,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:48,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:48,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:48,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:48,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:49:48,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:48,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:48,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:48,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:49:48,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:48,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:48,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1223 [2020-10-14 03:49:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:48,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:48,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:48,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:49:48,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:48,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:49:48,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:48,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:48,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:48,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:49:48,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:48,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:49,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3738 backedges. 817 proven. 518 refuted. 0 times theorem prover too weak. 2403 trivial. 0 not checked. [2020-10-14 03:49:49,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466568240] [2020-10-14 03:49:49,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:49,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:49,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721344171] [2020-10-14 03:49:49,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:49,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:49,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:49,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:49,077 INFO L87 Difference]: Start difference. First operand 19112 states and 19797 transitions. Second operand 7 states.