/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=NARROWEST --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/loop-lit/mcmillan2006.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:52:29,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:52:29,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:52:29,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:52:29,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:52:29,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:52:29,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:52:29,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:52:29,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:52:29,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:52:29,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:52:29,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:52:29,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:52:29,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:52:29,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:52:29,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:52:29,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:52:29,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:52:29,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:52:29,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:52:29,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:52:29,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:52:29,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:52:29,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:52:29,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:52:29,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:52:29,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:52:29,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:52:29,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:52:29,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:52:29,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:52:29,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:52:29,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:52:29,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:52:29,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:52:29,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:52:29,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:52:29,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:52:29,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:52:29,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:52:29,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:52:29,222 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 [2020-10-13 10:52:29,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:52:29,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:52:29,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:52:29,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:52:29,248 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:52:29,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:52:29,249 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:52:29,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:52:29,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:52:29,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:52:29,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:52:29,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:52:29,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:52:29,250 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:52:29,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:52:29,250 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:52:29,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:52:29,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:52:29,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:52:29,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:52:29,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:52:29,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:52:29,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:52:29,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:52:29,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:52:29,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:52:29,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:52:29,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:52:29,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:52:29,259 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:52:29,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:52:29,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:52:29,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:52:29,612 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:52:29,613 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:52:29,614 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/mcmillan2006.i [2020-10-13 10:52:29,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe2f88f43/243210205d054c6fb755e96bdaddfbff/FLAG910dc703d [2020-10-13 10:52:30,111 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:52:30,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/mcmillan2006.i [2020-10-13 10:52:30,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe2f88f43/243210205d054c6fb755e96bdaddfbff/FLAG910dc703d [2020-10-13 10:52:30,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe2f88f43/243210205d054c6fb755e96bdaddfbff [2020-10-13 10:52:30,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:52:30,540 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:52:30,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:52:30,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:52:30,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:52:30,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:52:30" (1/1) ... [2020-10-13 10:52:30,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5d5e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:30, skipping insertion in model container [2020-10-13 10:52:30,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:52:30" (1/1) ... [2020-10-13 10:52:30,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:52:30,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:52:30,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:52:30,833 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:52:30,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:52:30,868 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:52:30,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:30 WrapperNode [2020-10-13 10:52:30,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:52:30,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:52:30,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:52:30,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:52:30,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:30" (1/1) ... [2020-10-13 10:52:30,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:30" (1/1) ... [2020-10-13 10:52:30,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:30" (1/1) ... [2020-10-13 10:52:30,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:30" (1/1) ... [2020-10-13 10:52:30,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:30" (1/1) ... [2020-10-13 10:52:30,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:30" (1/1) ... [2020-10-13 10:52:30,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:30" (1/1) ... [2020-10-13 10:52:30,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:52:30,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:52:30,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:52:30,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:52:30,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:30" (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 [2020-10-13 10:52:31,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:52:31,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:52:31,046 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 10:52:31,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 10:52:31,046 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:52:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 10:52:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:52:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 10:52:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 10:52:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 10:52:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 10:52:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:52:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 10:52:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:52:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:52:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:52:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:52:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:52:31,271 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:52:31,271 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-13 10:52:31,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:52:31 BoogieIcfgContainer [2020-10-13 10:52:31,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:52:31,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:52:31,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:52:31,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:52:31,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:52:30" (1/3) ... [2020-10-13 10:52:31,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4828f990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:52:31, skipping insertion in model container [2020-10-13 10:52:31,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:30" (2/3) ... [2020-10-13 10:52:31,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4828f990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:52:31, skipping insertion in model container [2020-10-13 10:52:31,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:52:31" (3/3) ... [2020-10-13 10:52:31,284 INFO L109 eAbstractionObserver]: Analyzing ICFG mcmillan2006.i [2020-10-13 10:52:31,295 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:52:31,303 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:52:31,318 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:52:31,340 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:52:31,340 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:52:31,340 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:52:31,340 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:52:31,340 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:52:31,340 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:52:31,341 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:52:31,341 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:52:31,357 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-13 10:52:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-13 10:52:31,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:31,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:31,364 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:31,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:31,370 INFO L82 PathProgramCache]: Analyzing trace with hash -2077190930, now seen corresponding path program 1 times [2020-10-13 10:52:31,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:31,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629475793] [2020-10-13 10:52:31,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:31,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:31,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:31,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 10:52:31,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:31,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-13 10:52:31,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:31,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:52:31,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:31,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 10:52:31,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:52:31,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:31,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:31,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:31,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:31,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:52:31,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:31,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:52:31,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629475793] [2020-10-13 10:52:31,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:52:31,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:52:31,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493153036] [2020-10-13 10:52:31,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:52:31,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:31,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:52:31,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:52:31,939 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2020-10-13 10:52:32,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:32,170 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-10-13 10:52:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:52:32,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-13 10:52:32,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:32,181 INFO L225 Difference]: With dead ends: 50 [2020-10-13 10:52:32,181 INFO L226 Difference]: Without dead ends: 22 [2020-10-13 10:52:32,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:52:32,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-13 10:52:32,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-10-13 10:52:32,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-13 10:52:32,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-13 10:52:32,218 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2020-10-13 10:52:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:32,218 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-13 10:52:32,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:52:32,218 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-13 10:52:32,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-13 10:52:32,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:32,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:32,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:52:32,220 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:32,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:32,221 INFO L82 PathProgramCache]: Analyzing trace with hash 975894764, now seen corresponding path program 1 times [2020-10-13 10:52:32,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:32,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023339914] [2020-10-13 10:52:32,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:32,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:32,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:32,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 10:52:32,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:32,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-13 10:52:32,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:32,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:52:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 10:52:32,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:32,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:32,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:32,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:32,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:32,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:32,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 10:52:32,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:32,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:32,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:32,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:32,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:52:32,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023339914] [2020-10-13 10:52:32,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:32,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 10:52:32,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507410960] [2020-10-13 10:52:32,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 10:52:32,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:32,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 10:52:32,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:52:32,775 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 9 states. [2020-10-13 10:52:33,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:33,014 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-10-13 10:52:33,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 10:52:33,014 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-13 10:52:33,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:33,016 INFO L225 Difference]: With dead ends: 32 [2020-10-13 10:52:33,016 INFO L226 Difference]: Without dead ends: 30 [2020-10-13 10:52:33,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-13 10:52:33,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-13 10:52:33,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-10-13 10:52:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-13 10:52:33,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-13 10:52:33,026 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2020-10-13 10:52:33,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:33,027 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-13 10:52:33,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 10:52:33,027 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-13 10:52:33,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-13 10:52:33,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:33,028 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:33,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:52:33,029 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:33,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:33,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1989542074, now seen corresponding path program 1 times [2020-10-13 10:52:33,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:33,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74326488] [2020-10-13 10:52:33,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:33,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:33,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:33,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:52:33,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:33,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 10:52:33,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:33,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:52:33,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 10:52:33,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:33,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:33,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:33,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:33,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:33,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:33,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:33,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:33,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:33,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 10:52:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:33,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:33,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:33,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:33,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:33,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:52:33,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:33,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:33,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:33,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:33,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:33,270 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:52:33,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74326488] [2020-10-13 10:52:33,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:33,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 10:52:33,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846467414] [2020-10-13 10:52:33,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 10:52:33,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:33,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 10:52:33,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:52:33,273 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 8 states. [2020-10-13 10:52:33,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:33,387 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2020-10-13 10:52:33,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 10:52:33,387 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-10-13 10:52:33,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:33,391 INFO L225 Difference]: With dead ends: 46 [2020-10-13 10:52:33,391 INFO L226 Difference]: Without dead ends: 30 [2020-10-13 10:52:33,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 10:52:33,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-13 10:52:33,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-10-13 10:52:33,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-13 10:52:33,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-13 10:52:33,403 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2020-10-13 10:52:33,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:33,404 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-13 10:52:33,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 10:52:33,404 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-13 10:52:33,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 10:52:33,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:33,405 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:33,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:52:33,406 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:33,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:33,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1158808124, now seen corresponding path program 2 times [2020-10-13 10:52:33,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:33,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661028599] [2020-10-13 10:52:33,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:33,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:33,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:33,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 10:52:33,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:33,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-13 10:52:33,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:33,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 10:52:33,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:33,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 10:52:33,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:33,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:33,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:33,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:33,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:33,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:33,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:33,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:33,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:33,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:33,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:33,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:33,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-13 10:52:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:33,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:33,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:33,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:33,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:33,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:52:33,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:33,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:33,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:33,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:33,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:33,794 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:52:33,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661028599] [2020-10-13 10:52:33,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:33,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 10:52:33,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291770990] [2020-10-13 10:52:33,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 10:52:33,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:33,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 10:52:33,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-13 10:52:33,812 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 11 states. [2020-10-13 10:52:34,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:34,092 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-10-13 10:52:34,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 10:52:34,093 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2020-10-13 10:52:34,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:34,094 INFO L225 Difference]: With dead ends: 42 [2020-10-13 10:52:34,094 INFO L226 Difference]: Without dead ends: 40 [2020-10-13 10:52:34,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2020-10-13 10:52:34,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-13 10:52:34,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2020-10-13 10:52:34,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-13 10:52:34,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-10-13 10:52:34,103 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 26 [2020-10-13 10:52:34,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:34,104 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-10-13 10:52:34,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 10:52:34,104 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-10-13 10:52:34,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 10:52:34,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:34,106 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:34,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 10:52:34,106 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:34,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:34,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1029264354, now seen corresponding path program 3 times [2020-10-13 10:52:34,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:34,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747358347] [2020-10-13 10:52:34,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:34,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:34,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:34,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 10:52:34,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:34,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-13 10:52:34,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:52:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 10:52:34,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:34,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:34,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:34,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:34,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:34,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:34,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:34,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:34,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:34,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:34,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:34,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:34,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-13 10:52:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:34,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:34,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:34,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:34,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:34,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:52:34,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:34,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:34,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:34,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:34,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:34,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 10:52:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:34,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:34,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:34,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:34,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:34,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:52:34,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:34,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:34,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:34,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:34,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 10:52:34,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747358347] [2020-10-13 10:52:34,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:34,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 10:52:34,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928656270] [2020-10-13 10:52:34,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 10:52:34,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:34,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 10:52:34,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 10:52:34,450 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 10 states. [2020-10-13 10:52:34,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:34,624 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2020-10-13 10:52:34,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 10:52:34,626 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-10-13 10:52:34,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:34,627 INFO L225 Difference]: With dead ends: 60 [2020-10-13 10:52:34,627 INFO L226 Difference]: Without dead ends: 40 [2020-10-13 10:52:34,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-10-13 10:52:34,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-13 10:52:34,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2020-10-13 10:52:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-13 10:52:34,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-13 10:52:34,647 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 34 [2020-10-13 10:52:34,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:34,647 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-13 10:52:34,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 10:52:34,647 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-13 10:52:34,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-13 10:52:34,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:34,649 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:34,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 10:52:34,649 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:34,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:34,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1582638364, now seen corresponding path program 4 times [2020-10-13 10:52:34,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:34,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798713747] [2020-10-13 10:52:34,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:34,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:34,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:34,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 10:52:34,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:34,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-13 10:52:34,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 10:52:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 10:52:34,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:35,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:35,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:35,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:35,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:35,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:35,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:35,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:35,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:35,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:35,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 10:52:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:35,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:35,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:35,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:35,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:35,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:35,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:35,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 10:52:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:35,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:35,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:35,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:35,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:35,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:35,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:35,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:35,123 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 10:52:35,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798713747] [2020-10-13 10:52:35,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:35,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 10:52:35,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021402967] [2020-10-13 10:52:35,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 10:52:35,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:35,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 10:52:35,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-13 10:52:35,127 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 13 states. [2020-10-13 10:52:35,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:35,532 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-13 10:52:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 10:52:35,532 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2020-10-13 10:52:35,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:35,534 INFO L225 Difference]: With dead ends: 52 [2020-10-13 10:52:35,534 INFO L226 Difference]: Without dead ends: 50 [2020-10-13 10:52:35,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2020-10-13 10:52:35,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-13 10:52:35,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2020-10-13 10:52:35,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-13 10:52:35,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-13 10:52:35,543 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 36 [2020-10-13 10:52:35,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:35,544 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-13 10:52:35,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 10:52:35,544 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-13 10:52:35,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-13 10:52:35,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:35,545 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:35,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 10:52:35,546 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:35,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:35,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1937570678, now seen corresponding path program 5 times [2020-10-13 10:52:35,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:35,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272511929] [2020-10-13 10:52:35,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:35,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:35,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:35,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 10:52:35,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:35,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-13 10:52:35,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:35,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 10:52:35,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:35,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 10:52:35,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:35,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:35,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:35,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:35,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:35,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:35,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:35,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:35,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:35,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:35,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:35,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:35,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 10:52:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:35,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:35,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:35,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:35,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:52:35,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:35,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:35,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:35,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:35,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:35,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 10:52:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:35,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:35,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:35,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:35,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:35,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:35,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:35,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:35,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:35,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:35,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:35,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 10:52:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:35,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:35,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:35,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:35,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:35,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:52:35,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:35,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:35,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:35,880 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 10:52:35,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272511929] [2020-10-13 10:52:35,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:35,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 10:52:35,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852253064] [2020-10-13 10:52:35,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 10:52:35,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:35,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 10:52:35,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-13 10:52:35,886 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 12 states. [2020-10-13 10:52:36,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:36,151 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2020-10-13 10:52:36,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 10:52:36,152 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2020-10-13 10:52:36,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:36,154 INFO L225 Difference]: With dead ends: 74 [2020-10-13 10:52:36,155 INFO L226 Difference]: Without dead ends: 50 [2020-10-13 10:52:36,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-13 10:52:36,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-13 10:52:36,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2020-10-13 10:52:36,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-13 10:52:36,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2020-10-13 10:52:36,174 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 44 [2020-10-13 10:52:36,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:36,174 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2020-10-13 10:52:36,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 10:52:36,175 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2020-10-13 10:52:36,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 10:52:36,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:36,183 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:36,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 10:52:36,183 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:36,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:36,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1134637324, now seen corresponding path program 6 times [2020-10-13 10:52:36,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:36,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457158420] [2020-10-13 10:52:36,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:36,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:36,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:36,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-13 10:52:36,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:36,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-13 10:52:36,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:36,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:52:36,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:36,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 10:52:36,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:36,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:36,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:36,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:36,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:36,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:36,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:36,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:36,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:36,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:36,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:36,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:36,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 10:52:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:36,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:36,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:36,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:36,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:36,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:52:36,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:36,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:36,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:36,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:36,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:52:36,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 10:52:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:36,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:36,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:36,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:36,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:36,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:36,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:36,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:36,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:36,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:36,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:36,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 10:52:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:36,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:36,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:36,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:36,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:36,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:52:36,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:36,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:36,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:36,852 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 10:52:36,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457158420] [2020-10-13 10:52:36,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:36,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 10:52:36,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100382879] [2020-10-13 10:52:36,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 10:52:36,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:36,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 10:52:36,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-13 10:52:36,857 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 15 states. [2020-10-13 10:52:37,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:37,459 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2020-10-13 10:52:37,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 10:52:37,459 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 46 [2020-10-13 10:52:37,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:37,460 INFO L225 Difference]: With dead ends: 62 [2020-10-13 10:52:37,461 INFO L226 Difference]: Without dead ends: 60 [2020-10-13 10:52:37,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2020-10-13 10:52:37,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-13 10:52:37,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2020-10-13 10:52:37,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-13 10:52:37,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-10-13 10:52:37,469 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 46 [2020-10-13 10:52:37,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:37,470 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-10-13 10:52:37,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 10:52:37,470 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-10-13 10:52:37,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-13 10:52:37,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:37,471 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:37,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 10:52:37,471 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:37,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:37,472 INFO L82 PathProgramCache]: Analyzing trace with hash -7647922, now seen corresponding path program 7 times [2020-10-13 10:52:37,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:37,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661640156] [2020-10-13 10:52:37,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:37,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:37,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:37,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 10:52:37,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:37,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-13 10:52:37,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:37,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 10:52:37,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:37,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 10:52:37,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:37,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:37,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:37,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:37,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:37,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:37,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:37,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:37,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:37,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 10:52:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:37,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:37,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:37,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:37,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:37,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:37,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:37,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:37,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:37,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:37,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:37,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 10:52:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:37,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:37,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:37,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:37,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:37,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:37,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:37,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:37,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:37,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:37,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:37,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 10:52:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:37,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:37,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:37,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:37,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:37,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:37,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:37,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:37,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 10:52:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:37,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:37,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:37,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:37,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:37,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:37,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:37,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:37,874 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 40 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-13 10:52:37,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661640156] [2020-10-13 10:52:37,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:37,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 10:52:37,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013487553] [2020-10-13 10:52:37,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 10:52:37,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:37,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 10:52:37,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-13 10:52:37,877 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 14 states. [2020-10-13 10:52:38,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:38,114 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2020-10-13 10:52:38,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 10:52:38,114 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-10-13 10:52:38,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:38,116 INFO L225 Difference]: With dead ends: 88 [2020-10-13 10:52:38,116 INFO L226 Difference]: Without dead ends: 60 [2020-10-13 10:52:38,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-10-13 10:52:38,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-13 10:52:38,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2020-10-13 10:52:38,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-13 10:52:38,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-13 10:52:38,126 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 54 [2020-10-13 10:52:38,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:38,126 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-13 10:52:38,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 10:52:38,126 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-13 10:52:38,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-13 10:52:38,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:38,128 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:38,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 10:52:38,128 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:38,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:38,128 INFO L82 PathProgramCache]: Analyzing trace with hash 722557772, now seen corresponding path program 8 times [2020-10-13 10:52:38,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:38,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780364782] [2020-10-13 10:52:38,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:38,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:38,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:38,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 10:52:38,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:38,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-13 10:52:38,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:38,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:52:38,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:38,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 10:52:38,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:38,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:38,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:38,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:38,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:38,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:38,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:38,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:38,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:38,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 10:52:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:38,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:38,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:38,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:38,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:38,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:38,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:38,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:38,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:38,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:38,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:38,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 10:52:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:38,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:38,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:38,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:38,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:38,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:38,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:38,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:38,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:38,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:38,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:38,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 10:52:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:38,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:38,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:38,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:38,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:38,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:38,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:38,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:38,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 10:52:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:38,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:38,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:38,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:38,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:38,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:38,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:38,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:38,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:38,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:38,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:38,840 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 8 proven. 57 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-13 10:52:38,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780364782] [2020-10-13 10:52:38,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:38,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 10:52:38,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528219609] [2020-10-13 10:52:38,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 10:52:38,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:38,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 10:52:38,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-13 10:52:38,843 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 17 states. [2020-10-13 10:52:39,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:39,407 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2020-10-13 10:52:39,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 10:52:39,410 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2020-10-13 10:52:39,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:39,411 INFO L225 Difference]: With dead ends: 72 [2020-10-13 10:52:39,411 INFO L226 Difference]: Without dead ends: 70 [2020-10-13 10:52:39,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2020-10-13 10:52:39,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-13 10:52:39,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2020-10-13 10:52:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-13 10:52:39,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2020-10-13 10:52:39,430 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 56 [2020-10-13 10:52:39,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:39,430 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2020-10-13 10:52:39,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 10:52:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2020-10-13 10:52:39,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-13 10:52:39,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:39,434 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:39,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 10:52:39,435 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:39,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:39,435 INFO L82 PathProgramCache]: Analyzing trace with hash 7864742, now seen corresponding path program 9 times [2020-10-13 10:52:39,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:39,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291369695] [2020-10-13 10:52:39,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:39,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:39,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:39,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 10:52:39,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:39,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-13 10:52:39,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:39,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 10:52:39,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:39,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 10:52:39,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:39,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:39,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:39,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:39,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:39,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:39,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:52:39,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:39,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:39,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 10:52:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:39,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:39,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:39,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:39,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:39,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:39,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:39,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:39,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 10:52:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:39,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:39,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:39,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:39,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:39,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:39,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:39,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:39,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:39,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:39,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:39,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 10:52:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:39,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:39,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:39,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:39,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:39,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:39,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:39,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:39,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:39,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 10:52:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:39,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:39,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:39,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:39,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:39,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:39,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:39,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:39,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:39,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:39,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:39,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 10:52:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:39,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:39,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:39,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:39,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:39,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:39,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:39,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:39,911 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 60 proven. 25 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-13 10:52:39,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291369695] [2020-10-13 10:52:39,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:39,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 10:52:39,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480189461] [2020-10-13 10:52:39,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 10:52:39,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:39,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 10:52:39,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-10-13 10:52:39,914 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand 16 states. [2020-10-13 10:52:40,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:40,211 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2020-10-13 10:52:40,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 10:52:40,211 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 64 [2020-10-13 10:52:40,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:40,213 INFO L225 Difference]: With dead ends: 102 [2020-10-13 10:52:40,213 INFO L226 Difference]: Without dead ends: 70 [2020-10-13 10:52:40,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2020-10-13 10:52:40,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-13 10:52:40,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2020-10-13 10:52:40,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-13 10:52:40,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-10-13 10:52:40,233 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 64 [2020-10-13 10:52:40,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:40,233 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-10-13 10:52:40,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 10:52:40,234 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-10-13 10:52:40,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-13 10:52:40,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:40,235 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:40,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 10:52:40,236 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:40,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:40,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1417357860, now seen corresponding path program 10 times [2020-10-13 10:52:40,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:40,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360347831] [2020-10-13 10:52:40,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:40,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:40,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:40,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 10:52:40,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-10-13 10:52:40,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 10:52:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:40,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 10:52:40,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:40,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:40,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:40,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:40,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:40,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:40,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:52:40,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:40,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:40,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:40,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 10:52:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:40,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:40,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:40,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:40,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:40,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:40,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:40,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:40,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:40,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:40,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:40,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 10:52:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:40,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:40,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:40,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:40,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:40,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:40,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:40,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:40,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:40,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:40,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:40,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 10:52:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:40,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:40,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:40,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:40,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:40,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:40,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:40,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:40,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:40,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:40,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:40,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 10:52:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:40,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:40,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:40,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:40,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:40,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:52:40,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:40,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:40,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:40,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:40,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:40,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 10:52:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:40,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:41,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:41,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:41,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:41,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:41,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:41,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:41,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:41,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:41,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:41,012 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 10 proven. 86 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-13 10:52:41,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360347831] [2020-10-13 10:52:41,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:41,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 10:52:41,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389378955] [2020-10-13 10:52:41,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 10:52:41,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:41,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 10:52:41,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-13 10:52:41,016 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 19 states. [2020-10-13 10:52:41,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:41,876 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-10-13 10:52:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 10:52:41,877 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 66 [2020-10-13 10:52:41,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:41,878 INFO L225 Difference]: With dead ends: 82 [2020-10-13 10:52:41,879 INFO L226 Difference]: Without dead ends: 80 [2020-10-13 10:52:41,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2020-10-13 10:52:41,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-13 10:52:41,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2020-10-13 10:52:41,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-13 10:52:41,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2020-10-13 10:52:41,902 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 66 [2020-10-13 10:52:41,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:41,903 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2020-10-13 10:52:41,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 10:52:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2020-10-13 10:52:41,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 10:52:41,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:41,904 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:41,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 10:52:41,905 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:41,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:41,905 INFO L82 PathProgramCache]: Analyzing trace with hash -604931970, now seen corresponding path program 11 times [2020-10-13 10:52:41,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:41,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111270051] [2020-10-13 10:52:41,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:41,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:42,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:42,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-13 10:52:42,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:42,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-10-13 10:52:42,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 10:52:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:42,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 10:52:42,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:42,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:42,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:42,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:42,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:42,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:42,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:42,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:42,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:42,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:42,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:42,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:42,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 10:52:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:42,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:42,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:42,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:42,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:42,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:42,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:42,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:42,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:42,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:42,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:42,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 10:52:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:42,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:42,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:42,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:42,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:42,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:42,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:42,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:42,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 10:52:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:42,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:42,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:42,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:42,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:42,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:42,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:42,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 10:52:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:42,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:42,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:42,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:42,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:42,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:42,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:42,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:42,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 10:52:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:42,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:42,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:42,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:42,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:42,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:42,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:42,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:42,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:42,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:42,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:42,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 10:52:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:42,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:42,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:42,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:42,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:42,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:42,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:42,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:42,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:42,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:42,666 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 84 proven. 36 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 10:52:42,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111270051] [2020-10-13 10:52:42,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:42,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 10:52:42,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127696103] [2020-10-13 10:52:42,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 10:52:42,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:42,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 10:52:42,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2020-10-13 10:52:42,671 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 18 states. [2020-10-13 10:52:43,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:43,057 INFO L93 Difference]: Finished difference Result 116 states and 124 transitions. [2020-10-13 10:52:43,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 10:52:43,058 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 74 [2020-10-13 10:52:43,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:43,059 INFO L225 Difference]: With dead ends: 116 [2020-10-13 10:52:43,059 INFO L226 Difference]: Without dead ends: 80 [2020-10-13 10:52:43,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-10-13 10:52:43,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-13 10:52:43,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2020-10-13 10:52:43,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-13 10:52:43,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2020-10-13 10:52:43,080 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 74 [2020-10-13 10:52:43,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:43,080 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2020-10-13 10:52:43,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 10:52:43,080 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2020-10-13 10:52:43,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-13 10:52:43,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:43,085 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:43,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 10:52:43,085 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:43,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:43,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1286773628, now seen corresponding path program 12 times [2020-10-13 10:52:43,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:43,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641620104] [2020-10-13 10:52:43,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:43,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:43,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:43,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 10:52:43,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498 [2020-10-13 10:52:43,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 10:52:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 10:52:43,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:43,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:43,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:43,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:43,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:43,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:43,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:43,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:43,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:43,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:43,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:43,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:43,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 10:52:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:43,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:43,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:43,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:43,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:43,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:43,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:43,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:43,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 10:52:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:43,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:43,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:43,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:43,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:43,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:43,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:43,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:43,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:43,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:43,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:43,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 10:52:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:43,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:43,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:43,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:43,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:43,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:43,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:43,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:43,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 10:52:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:43,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:43,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:43,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:43,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:43,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:43,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:43,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:43,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:43,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:43,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:43,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 10:52:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:43,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:43,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:43,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:43,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:43,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:43,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:43,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:43,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 10:52:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:43,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:43,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:43,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:43,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:43,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:43,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:43,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:43,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:43,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:43,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:43,993 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 12 proven. 121 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 10:52:43,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641620104] [2020-10-13 10:52:43,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:43,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-13 10:52:43,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283631834] [2020-10-13 10:52:43,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-13 10:52:43,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:43,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-13 10:52:43,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-13 10:52:43,996 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand 21 states. [2020-10-13 10:52:44,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:44,839 INFO L93 Difference]: Finished difference Result 92 states and 93 transitions. [2020-10-13 10:52:44,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 10:52:44,839 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 76 [2020-10-13 10:52:44,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:44,841 INFO L225 Difference]: With dead ends: 92 [2020-10-13 10:52:44,841 INFO L226 Difference]: Without dead ends: 90 [2020-10-13 10:52:44,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=964, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 10:52:44,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-13 10:52:44,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2020-10-13 10:52:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-13 10:52:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2020-10-13 10:52:44,851 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 76 [2020-10-13 10:52:44,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:44,851 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2020-10-13 10:52:44,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-13 10:52:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2020-10-13 10:52:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 10:52:44,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:44,852 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:44,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 10:52:44,853 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:44,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:44,853 INFO L82 PathProgramCache]: Analyzing trace with hash -642903594, now seen corresponding path program 13 times [2020-10-13 10:52:44,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:44,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072111326] [2020-10-13 10:52:44,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:44,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:45,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:45,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 10:52:45,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:45,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-10-13 10:52:45,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 10:52:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 10:52:45,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:45,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:45,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:45,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:45,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:45,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:45,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:45,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:45,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:45,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:45,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:45,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:45,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 10:52:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:45,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:45,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:45,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:45,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:45,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:45,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:45,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:45,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:45,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:45,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:45,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 10:52:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:45,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:45,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:45,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:45,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:45,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:45,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:45,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:45,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:45,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:45,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:45,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 10:52:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:45,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:45,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:45,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:45,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:45,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:45,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:45,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:45,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:45,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:45,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:45,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 10:52:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:45,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:45,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:45,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:45,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:45,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:45,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:45,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:45,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:45,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:45,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:45,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 10:52:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:45,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:45,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:45,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:45,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:45,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:45,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:45,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:45,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:45,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:45,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:45,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 10:52:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:45,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:45,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:45,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:45,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:45,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:45,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:45,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:45,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 10:52:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:45,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:45,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:45,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:45,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:45,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:45,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:45,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:45,555 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 112 proven. 49 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-13 10:52:45,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072111326] [2020-10-13 10:52:45,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:45,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-13 10:52:45,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182005823] [2020-10-13 10:52:45,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 10:52:45,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:45,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 10:52:45,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2020-10-13 10:52:45,557 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand 20 states. [2020-10-13 10:52:45,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:45,934 INFO L93 Difference]: Finished difference Result 130 states and 139 transitions. [2020-10-13 10:52:45,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 10:52:45,935 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 84 [2020-10-13 10:52:45,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:45,936 INFO L225 Difference]: With dead ends: 130 [2020-10-13 10:52:45,937 INFO L226 Difference]: Without dead ends: 90 [2020-10-13 10:52:45,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2020-10-13 10:52:45,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-13 10:52:45,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2020-10-13 10:52:45,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-13 10:52:45,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 90 transitions. [2020-10-13 10:52:45,946 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 90 transitions. Word has length 84 [2020-10-13 10:52:45,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:45,946 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 90 transitions. [2020-10-13 10:52:45,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 10:52:45,946 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 90 transitions. [2020-10-13 10:52:45,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 10:52:45,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:45,947 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:45,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 10:52:45,947 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:45,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:45,948 INFO L82 PathProgramCache]: Analyzing trace with hash 668340052, now seen corresponding path program 14 times [2020-10-13 10:52:45,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:45,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246546393] [2020-10-13 10:52:45,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:45,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:46,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:46,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 10:52:46,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:46,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 660 [2020-10-13 10:52:46,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 10:52:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 10:52:46,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:47,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:47,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:47,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:47,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:47,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:47,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:47,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:47,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:47,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 10:52:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:47,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:47,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:47,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:47,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:47,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:47,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:47,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:47,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:47,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:47,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 10:52:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:47,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:47,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:47,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:47,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:47,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:47,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:47,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:47,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 10:52:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:47,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:47,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:47,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:47,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:47,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:47,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:47,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:47,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 10:52:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:47,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:47,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:47,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:47,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:47,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:47,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:47,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:47,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:47,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:47,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:47,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 10:52:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:47,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:47,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:47,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:47,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:47,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:47,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:47,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:47,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:47,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:47,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:52:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:47,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:47,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:47,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:47,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:47,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:47,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:47,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:47,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:47,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 10:52:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:47,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:47,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:47,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:47,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:47,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:47,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:47,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:47,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:47,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:47,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:47,239 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 14 proven. 162 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-13 10:52:47,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246546393] [2020-10-13 10:52:47,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:47,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-13 10:52:47,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081357881] [2020-10-13 10:52:47,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-13 10:52:47,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:47,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-13 10:52:47,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-13 10:52:47,241 INFO L87 Difference]: Start difference. First operand 89 states and 90 transitions. Second operand 23 states. [2020-10-13 10:52:48,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:48,498 INFO L93 Difference]: Finished difference Result 102 states and 103 transitions. [2020-10-13 10:52:48,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 10:52:48,498 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 86 [2020-10-13 10:52:48,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:48,500 INFO L225 Difference]: With dead ends: 102 [2020-10-13 10:52:48,500 INFO L226 Difference]: Without dead ends: 100 [2020-10-13 10:52:48,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=1160, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 10:52:48,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-13 10:52:48,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2020-10-13 10:52:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-13 10:52:48,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 98 transitions. [2020-10-13 10:52:48,509 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 98 transitions. Word has length 86 [2020-10-13 10:52:48,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:48,510 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 98 transitions. [2020-10-13 10:52:48,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-13 10:52:48,510 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 98 transitions. [2020-10-13 10:52:48,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-13 10:52:48,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:48,511 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:48,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 10:52:48,512 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:48,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:48,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1184092754, now seen corresponding path program 15 times [2020-10-13 10:52:48,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:48,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335252104] [2020-10-13 10:52:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:48,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:49,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:49,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 10:52:49,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:49,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-10-13 10:52:49,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:49,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 10:52:49,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:49,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 10:52:49,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:49,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:49,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:49,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:49,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:49,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:52:49,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:49,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:49,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 10:52:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:49,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:49,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:49,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:49,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:49,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:49,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:49,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:49,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:49,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 10:52:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:49,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:49,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:49,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:49,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:49,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:49,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:49,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:49,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:49,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:49,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:49,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 10:52:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:49,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:49,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:49,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:49,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:49,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:49,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:49,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:49,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:49,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 10:52:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:49,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:49,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:49,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:49,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:49,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:49,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:49,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:49,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:49,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:49,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:49,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 10:52:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:49,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:49,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:49,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:49,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:49,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:49,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:49,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:49,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:49,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:49,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:49,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:52:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:49,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:49,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:49,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:49,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:49,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:49,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:49,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:49,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 10:52:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:49,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:49,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:49,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:49,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:49,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:49,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:49,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:49,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 10:52:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:49,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:49,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:49,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:49,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:49,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:49,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:49,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:49,445 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 144 proven. 64 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 10:52:49,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335252104] [2020-10-13 10:52:49,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:49,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-13 10:52:49,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114143537] [2020-10-13 10:52:49,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 10:52:49,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:49,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 10:52:49,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-10-13 10:52:49,448 INFO L87 Difference]: Start difference. First operand 97 states and 98 transitions. Second operand 22 states. [2020-10-13 10:52:49,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:49,933 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2020-10-13 10:52:49,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 10:52:49,933 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 94 [2020-10-13 10:52:49,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:49,935 INFO L225 Difference]: With dead ends: 144 [2020-10-13 10:52:49,935 INFO L226 Difference]: Without dead ends: 100 [2020-10-13 10:52:49,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=243, Invalid=749, Unknown=0, NotChecked=0, Total=992 [2020-10-13 10:52:49,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-13 10:52:49,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2020-10-13 10:52:49,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-13 10:52:49,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2020-10-13 10:52:49,949 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 100 transitions. Word has length 94 [2020-10-13 10:52:49,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:49,950 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 100 transitions. [2020-10-13 10:52:49,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 10:52:49,950 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 100 transitions. [2020-10-13 10:52:49,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-13 10:52:49,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:49,951 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:49,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 10:52:49,952 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:49,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:49,952 INFO L82 PathProgramCache]: Analyzing trace with hash 269215148, now seen corresponding path program 16 times [2020-10-13 10:52:49,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:49,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970449565] [2020-10-13 10:52:49,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:49,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:50,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:50,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 10:52:50,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:50,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 730 [2020-10-13 10:52:50,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 10:52:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:50,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 10:52:50,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:51,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:51,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:51,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:51,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:51,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:51,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:52:51,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:51,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:51,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 10:52:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:51,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:51,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:51,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:51,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:51,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:51,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:51,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:51,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:51,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:51,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 10:52:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:51,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:51,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:51,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:51,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:51,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:51,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:51,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:51,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:51,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:51,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:51,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 10:52:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:51,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:51,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:51,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:51,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:51,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:51,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:51,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:51,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 10:52:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:51,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:51,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:51,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:51,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:51,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:51,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:51,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:51,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 10:52:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:51,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:51,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:51,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:51,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:51,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:51,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:51,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:51,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:51,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:51,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:51,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 10:52:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:51,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:51,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:51,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:51,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:51,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:51,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:51,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:51,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 10:52:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:51,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:51,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:51,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:51,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:51,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:51,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:51,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:51,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:51,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:51,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:51,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 10:52:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:51,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:51,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:51,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:51,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:51,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:51,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:51,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:51,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:51,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:51,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:51,201 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 16 proven. 209 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 10:52:51,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970449565] [2020-10-13 10:52:51,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:51,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-13 10:52:51,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416343829] [2020-10-13 10:52:51,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-13 10:52:51,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:51,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-13 10:52:51,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-13 10:52:51,203 INFO L87 Difference]: Start difference. First operand 99 states and 100 transitions. Second operand 25 states. [2020-10-13 10:52:52,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:52,479 INFO L93 Difference]: Finished difference Result 112 states and 113 transitions. [2020-10-13 10:52:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-13 10:52:52,480 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 96 [2020-10-13 10:52:52,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:52,481 INFO L225 Difference]: With dead ends: 112 [2020-10-13 10:52:52,481 INFO L226 Difference]: Without dead ends: 110 [2020-10-13 10:52:52,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=1374, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 10:52:52,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-13 10:52:52,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2020-10-13 10:52:52,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-13 10:52:52,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 108 transitions. [2020-10-13 10:52:52,493 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 108 transitions. Word has length 96 [2020-10-13 10:52:52,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:52,494 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 108 transitions. [2020-10-13 10:52:52,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-13 10:52:52,494 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 108 transitions. [2020-10-13 10:52:52,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 10:52:52,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:52,495 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:52,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 10:52:52,496 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:52,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:52,496 INFO L82 PathProgramCache]: Analyzing trace with hash -923653114, now seen corresponding path program 17 times [2020-10-13 10:52:52,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:52,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252914581] [2020-10-13 10:52:52,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:52,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:53,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:53,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 10:52:53,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:53,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 828 [2020-10-13 10:52:53,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 10:52:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-13 10:52:53,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:53,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:53,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:53,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:53,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:53,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:53,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:53,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:53,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:53,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:53,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:53,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:53,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 10:52:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:53,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:53,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:53,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:53,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:53,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:53,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:53,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:53,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 10:52:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:53,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:53,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:53,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:53,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:53,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:53,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:53,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:53,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:53,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 10:52:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:53,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:53,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:53,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:53,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:53,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:53,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:53,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:53,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:53,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:53,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:53,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 10:52:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:53,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:53,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:53,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:53,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:53,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:53,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:53,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:53,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 10:52:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:53,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:53,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:53,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:53,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:53,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:53,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:53,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:53,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 10:52:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:53,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:53,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:53,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:53,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:53,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:53,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:53,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:53,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:53,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:53,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:53,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 10:52:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:53,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:53,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:53,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:53,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:53,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:53,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:53,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:53,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 10:52:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:53,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:53,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:53,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:53,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:53,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:52:53,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:53,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:53,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 10:52:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:53,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:53,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:53,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:53,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:53,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:53,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:53,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:53,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:53,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:52:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 180 proven. 81 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-13 10:52:53,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252914581] [2020-10-13 10:52:53,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:53,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-13 10:52:53,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020978535] [2020-10-13 10:52:53,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-13 10:52:53,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:53,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-13 10:52:53,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2020-10-13 10:52:53,834 INFO L87 Difference]: Start difference. First operand 107 states and 108 transitions. Second operand 24 states. [2020-10-13 10:52:54,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:54,459 INFO L93 Difference]: Finished difference Result 158 states and 169 transitions. [2020-10-13 10:52:54,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 10:52:54,460 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 104 [2020-10-13 10:52:54,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:54,461 INFO L225 Difference]: With dead ends: 158 [2020-10-13 10:52:54,461 INFO L226 Difference]: Without dead ends: 110 [2020-10-13 10:52:54,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=289, Invalid=901, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 10:52:54,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-13 10:52:54,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2020-10-13 10:52:54,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-13 10:52:54,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2020-10-13 10:52:54,473 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 104 [2020-10-13 10:52:54,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:54,473 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2020-10-13 10:52:54,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-13 10:52:54,473 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2020-10-13 10:52:54,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-13 10:52:54,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:54,475 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:54,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 10:52:54,475 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:54,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:54,476 INFO L82 PathProgramCache]: Analyzing trace with hash -612204924, now seen corresponding path program 18 times [2020-10-13 10:52:54,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:54,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139108902] [2020-10-13 10:52:54,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:54,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:55,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:55,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 10:52:55,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:55,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-10-13 10:52:55,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 10:52:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 10:52:55,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:55,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:55,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:55,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:55,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:55,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:55,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:52:55,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:55,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:55,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 10:52:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:55,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:55,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:55,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:55,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:55,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:55,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:55,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:55,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 10:52:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:55,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:55,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:55,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:55,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:55,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:55,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:55,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:55,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:55,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:55,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:55,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 10:52:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:55,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:55,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:55,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:55,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:55,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:55,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:55,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:55,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 10:52:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:55,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:55,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:55,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:55,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:55,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:55,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:55,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:55,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 10:52:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:55,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:55,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:55,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:55,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:55,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:55,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:55,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:55,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:55,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:55,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:55,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 10:52:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:55,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:55,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:55,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:55,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:55,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:55,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:55,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:55,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 10:52:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:55,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:55,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:55,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:55,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:55,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:55,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:55,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:55,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:55,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:55,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:55,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 10:52:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:55,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:55,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:55,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:55,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:55,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:55,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:55,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:55,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 10:52:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:55,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:55,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:55,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:55,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:55,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:55,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:55,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:55,992 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 18 proven. 262 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-13 10:52:55,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139108902] [2020-10-13 10:52:55,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:55,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-13 10:52:55,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171065316] [2020-10-13 10:52:55,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-13 10:52:55,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:55,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-13 10:52:55,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-13 10:52:55,995 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand 27 states. [2020-10-13 10:52:57,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:57,459 INFO L93 Difference]: Finished difference Result 122 states and 123 transitions. [2020-10-13 10:52:57,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 10:52:57,460 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 106 [2020-10-13 10:52:57,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:57,461 INFO L225 Difference]: With dead ends: 122 [2020-10-13 10:52:57,461 INFO L226 Difference]: Without dead ends: 120 [2020-10-13 10:52:57,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=116, Invalid=1606, Unknown=0, NotChecked=0, Total=1722 [2020-10-13 10:52:57,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-13 10:52:57,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2020-10-13 10:52:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-13 10:52:57,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 118 transitions. [2020-10-13 10:52:57,472 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 118 transitions. Word has length 106 [2020-10-13 10:52:57,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:57,472 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 118 transitions. [2020-10-13 10:52:57,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-13 10:52:57,473 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 118 transitions. [2020-10-13 10:52:57,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-13 10:52:57,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:57,474 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:57,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 10:52:57,474 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:57,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:57,475 INFO L82 PathProgramCache]: Analyzing trace with hash 2047765726, now seen corresponding path program 19 times [2020-10-13 10:52:57,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:57,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139351611] [2020-10-13 10:52:57,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:57,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-13 10:52:58,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 649 [2020-10-13 10:52:58,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-13 10:52:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:52:58,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 10:52:58,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:52:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:58,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:52:58,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:52:58,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:52:58,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:58,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:52:58,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 10:52:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:58,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:58,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:58,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:58,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 10:52:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:58,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:58,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:58,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:58,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:58,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:58,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 10:52:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:58,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:58,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:58,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:58,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:58,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:58,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 10:52:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:58,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:58,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:58,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:58,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 10:52:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:58,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:58,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:58,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:58,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 10:52:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:58,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:58,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:58,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:58,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:58,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:58,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 10:52:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:58,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:58,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:52:58,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:58,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:58,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:58,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 10:52:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:58,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:58,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:58,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:58,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 10:52:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:58,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:58,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:58,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:58,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 10:52:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:58,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:52:58,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:52:58,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:52:58,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:52:58,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:52:58,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:52:58,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:52:58,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:52:58,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:52:58,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:52:58,518 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 220 proven. 100 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-13 10:52:58,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139351611] [2020-10-13 10:52:58,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:52:58,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-13 10:52:58,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680422218] [2020-10-13 10:52:58,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-13 10:52:58,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:52:58,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-13 10:52:58,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2020-10-13 10:52:58,521 INFO L87 Difference]: Start difference. First operand 117 states and 118 transitions. Second operand 26 states. [2020-10-13 10:52:59,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:52:59,120 INFO L93 Difference]: Finished difference Result 172 states and 184 transitions. [2020-10-13 10:52:59,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 10:52:59,121 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 114 [2020-10-13 10:52:59,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:52:59,122 INFO L225 Difference]: With dead ends: 172 [2020-10-13 10:52:59,122 INFO L226 Difference]: Without dead ends: 120 [2020-10-13 10:52:59,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 10:52:59,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-13 10:52:59,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2020-10-13 10:52:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-13 10:52:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 120 transitions. [2020-10-13 10:52:59,138 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 120 transitions. Word has length 114 [2020-10-13 10:52:59,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:52:59,139 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 120 transitions. [2020-10-13 10:52:59,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-13 10:52:59,139 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 120 transitions. [2020-10-13 10:52:59,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 10:52:59,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:52:59,140 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:52:59,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 10:52:59,141 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:52:59,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:52:59,141 INFO L82 PathProgramCache]: Analyzing trace with hash 577780188, now seen corresponding path program 20 times [2020-10-13 10:52:59,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:52:59,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16105169] [2020-10-13 10:52:59,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:52:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:52:59,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-13 10:53:00,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 849 [2020-10-13 10:53:00,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 10:53:00,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:00,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-13 10:53:00,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:00,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:00,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:00,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:00,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:00,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:00,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 10:53:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:00,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:00,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:00,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:00,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:00,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:00,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 10:53:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:00,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:00,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:00,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:00,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:00,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:00,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 10:53:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:00,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:00,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:00,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:00,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 10:53:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:00,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:00,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:00,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:00,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 10:53:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:00,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:00,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:00,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:00,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:00,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:00,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 10:53:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:00,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:00,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:00,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:00,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:00,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:00,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 10:53:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:00,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:00,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:00,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:00,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 10:53:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:00,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:00,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:00,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:00,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:00,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:00,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 10:53:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:00,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:00,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:00,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:00,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 10:53:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:00,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:00,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:00,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:00,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:00,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:00,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:00,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:00,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 20 proven. 321 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-13 10:53:00,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16105169] [2020-10-13 10:53:00,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:00,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-13 10:53:00,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865577757] [2020-10-13 10:53:00,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-13 10:53:00,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:00,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-13 10:53:00,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=756, Unknown=0, NotChecked=0, Total=812 [2020-10-13 10:53:00,658 INFO L87 Difference]: Start difference. First operand 119 states and 120 transitions. Second operand 29 states. [2020-10-13 10:53:02,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:02,199 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2020-10-13 10:53:02,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-13 10:53:02,202 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 116 [2020-10-13 10:53:02,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:02,206 INFO L225 Difference]: With dead ends: 132 [2020-10-13 10:53:02,207 INFO L226 Difference]: Without dead ends: 130 [2020-10-13 10:53:02,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=121, Invalid=1771, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 10:53:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-13 10:53:02,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2020-10-13 10:53:02,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-13 10:53:02,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 128 transitions. [2020-10-13 10:53:02,217 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 128 transitions. Word has length 116 [2020-10-13 10:53:02,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:02,218 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 128 transitions. [2020-10-13 10:53:02,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-13 10:53:02,218 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 128 transitions. [2020-10-13 10:53:02,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-13 10:53:02,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:02,220 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:02,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 10:53:02,220 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:02,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:02,220 INFO L82 PathProgramCache]: Analyzing trace with hash 2023182390, now seen corresponding path program 21 times [2020-10-13 10:53:02,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:02,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249440668] [2020-10-13 10:53:02,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:02,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:02,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:02,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 10:53:02,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:02,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 731 [2020-10-13 10:53:02,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 10:53:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-13 10:53:02,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:03,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:03,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:03,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:03,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:03,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:03,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 10:53:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:03,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:03,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:03,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:03,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:03,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 10:53:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:03,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:03,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:03,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:03,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:03,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 10:53:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:03,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:03,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:03,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:03,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:03,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 10:53:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:03,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:03,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:03,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:03,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:03,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 10:53:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:03,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:03,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:03,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:03,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 10:53:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:03,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:03,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:03,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:03,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:03,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 10:53:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:03,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:03,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:03,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:03,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:03,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 10:53:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:03,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:03,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:03,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:03,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 10:53:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:03,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:03,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:03,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:03,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 10:53:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:03,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:03,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:03,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:03,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:03,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 10:53:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:03,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:03,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:03,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:03,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:03,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:03,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:03,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:03,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:03,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:03,553 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 264 proven. 121 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-13 10:53:03,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249440668] [2020-10-13 10:53:03,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:03,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-13 10:53:03,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281725323] [2020-10-13 10:53:03,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-13 10:53:03,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:03,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-13 10:53:03,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2020-10-13 10:53:03,559 INFO L87 Difference]: Start difference. First operand 127 states and 128 transitions. Second operand 28 states. [2020-10-13 10:53:04,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:04,280 INFO L93 Difference]: Finished difference Result 186 states and 199 transitions. [2020-10-13 10:53:04,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-13 10:53:04,281 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 124 [2020-10-13 10:53:04,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:04,283 INFO L225 Difference]: With dead ends: 186 [2020-10-13 10:53:04,283 INFO L226 Difference]: Without dead ends: 130 [2020-10-13 10:53:04,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=393, Invalid=1247, Unknown=0, NotChecked=0, Total=1640 [2020-10-13 10:53:04,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-13 10:53:04,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 129. [2020-10-13 10:53:04,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-13 10:53:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 130 transitions. [2020-10-13 10:53:04,298 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 130 transitions. Word has length 124 [2020-10-13 10:53:04,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:04,299 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 130 transitions. [2020-10-13 10:53:04,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-13 10:53:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 130 transitions. [2020-10-13 10:53:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-13 10:53:04,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:04,301 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:04,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 10:53:04,301 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:04,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:04,302 INFO L82 PathProgramCache]: Analyzing trace with hash -720144460, now seen corresponding path program 22 times [2020-10-13 10:53:04,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:04,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458641570] [2020-10-13 10:53:04,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:04,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-13 10:53:05,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 891 [2020-10-13 10:53:05,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 10:53:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 10:53:05,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:05,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:05,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:05,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:05,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 10:53:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:05,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:05,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:05,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 10:53:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:05,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:05,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:05,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:05,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 10:53:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:05,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:05,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 10:53:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:05,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:05,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:05,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:05,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:53:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:05,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:05,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:05,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:05,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 10:53:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:05,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:05,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:05,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:05,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 10:53:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:05,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:05,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:05,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:05,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 10:53:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:05,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:05,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:05,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 10:53:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:05,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:05,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:05,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:05,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 10:53:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:05,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:05,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:05,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:05,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:05,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 10:53:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:05,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:05,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:05,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:05,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:05,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:05,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:05,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:05,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:05,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:05,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:06,030 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 22 proven. 386 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-13 10:53:06,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458641570] [2020-10-13 10:53:06,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:06,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-13 10:53:06,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832762775] [2020-10-13 10:53:06,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-13 10:53:06,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:06,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-13 10:53:06,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-10-13 10:53:06,033 INFO L87 Difference]: Start difference. First operand 129 states and 130 transitions. Second operand 31 states. [2020-10-13 10:53:07,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:07,967 INFO L93 Difference]: Finished difference Result 142 states and 143 transitions. [2020-10-13 10:53:07,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-13 10:53:07,968 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 126 [2020-10-13 10:53:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:07,969 INFO L225 Difference]: With dead ends: 142 [2020-10-13 10:53:07,970 INFO L226 Difference]: Without dead ends: 140 [2020-10-13 10:53:07,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=132, Invalid=2124, Unknown=0, NotChecked=0, Total=2256 [2020-10-13 10:53:07,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-13 10:53:07,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2020-10-13 10:53:07,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-13 10:53:07,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 138 transitions. [2020-10-13 10:53:07,997 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 138 transitions. Word has length 126 [2020-10-13 10:53:07,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:07,999 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 138 transitions. [2020-10-13 10:53:07,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-13 10:53:07,999 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 138 transitions. [2020-10-13 10:53:08,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 10:53:08,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:08,001 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:08,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 10:53:08,001 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:08,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:08,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1080768014, now seen corresponding path program 23 times [2020-10-13 10:53:08,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:08,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287326096] [2020-10-13 10:53:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:08,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:08,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:08,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 10:53:08,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:08,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 918 [2020-10-13 10:53:08,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:08,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-13 10:53:08,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:08,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-13 10:53:08,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:09,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:09,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:09,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:09,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:09,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:09,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 10:53:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:09,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:09,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 10:53:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:09,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:09,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 10:53:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:09,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:09,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 10:53:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:09,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:09,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:53:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:09,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:09,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 10:53:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:09,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:09,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 10:53:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:09,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:09,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 10:53:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:09,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:09,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 10:53:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:09,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:09,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 10:53:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:09,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:09,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 10:53:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:09,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:09,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 10:53:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:09,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:09,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:09,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:09,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:09,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:09,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:09,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:09,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:09,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:09,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 312 proven. 144 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-13 10:53:09,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287326096] [2020-10-13 10:53:09,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:09,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-13 10:53:09,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662098840] [2020-10-13 10:53:09,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-13 10:53:09,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:09,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-13 10:53:09,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2020-10-13 10:53:09,439 INFO L87 Difference]: Start difference. First operand 137 states and 138 transitions. Second operand 30 states. [2020-10-13 10:53:10,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:10,417 INFO L93 Difference]: Finished difference Result 200 states and 214 transitions. [2020-10-13 10:53:10,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-13 10:53:10,417 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 134 [2020-10-13 10:53:10,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:10,419 INFO L225 Difference]: With dead ends: 200 [2020-10-13 10:53:10,420 INFO L226 Difference]: Without dead ends: 140 [2020-10-13 10:53:10,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=451, Invalid=1441, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 10:53:10,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-13 10:53:10,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2020-10-13 10:53:10,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-13 10:53:10,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 140 transitions. [2020-10-13 10:53:10,433 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 140 transitions. Word has length 134 [2020-10-13 10:53:10,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:10,433 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 140 transitions. [2020-10-13 10:53:10,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-13 10:53:10,433 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 140 transitions. [2020-10-13 10:53:10,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-13 10:53:10,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:10,435 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:10,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 10:53:10,435 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:10,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:10,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1370658828, now seen corresponding path program 24 times [2020-10-13 10:53:10,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:10,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361093912] [2020-10-13 10:53:10,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:10,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:11,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:11,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-13 10:53:11,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:11,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1123 [2020-10-13 10:53:11,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 10:53:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-13 10:53:11,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:12,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:12,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:12,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:12,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 10:53:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:12,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 10:53:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:12,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 10:53:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:12,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 10:53:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:12,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 10:53:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:12,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 10:53:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:12,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 10:53:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:12,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 10:53:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:12,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 10:53:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:12,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 10:53:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 10:53:12,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 10:53:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:12,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:12,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 10:53:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:12,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:12,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:12,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:12,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:12,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:12,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:12,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 24 proven. 457 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-13 10:53:12,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361093912] [2020-10-13 10:53:12,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:12,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-13 10:53:12,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881711019] [2020-10-13 10:53:12,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-13 10:53:12,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:12,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-13 10:53:12,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 10:53:12,456 INFO L87 Difference]: Start difference. First operand 139 states and 140 transitions. Second operand 33 states. [2020-10-13 10:53:14,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:14,640 INFO L93 Difference]: Finished difference Result 152 states and 153 transitions. [2020-10-13 10:53:14,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 10:53:14,641 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 136 [2020-10-13 10:53:14,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:14,643 INFO L225 Difference]: With dead ends: 152 [2020-10-13 10:53:14,643 INFO L226 Difference]: Without dead ends: 150 [2020-10-13 10:53:14,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=135, Invalid=2315, Unknown=0, NotChecked=0, Total=2450 [2020-10-13 10:53:14,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-13 10:53:14,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2020-10-13 10:53:14,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-13 10:53:14,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 148 transitions. [2020-10-13 10:53:14,657 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 148 transitions. Word has length 136 [2020-10-13 10:53:14,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:14,657 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 148 transitions. [2020-10-13 10:53:14,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-13 10:53:14,658 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 148 transitions. [2020-10-13 10:53:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-13 10:53:14,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:14,659 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:14,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 10:53:14,660 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:14,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:14,660 INFO L82 PathProgramCache]: Analyzing trace with hash 863010406, now seen corresponding path program 25 times [2020-10-13 10:53:14,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:14,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116398271] [2020-10-13 10:53:14,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:14,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:15,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:15,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 10:53:15,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:15,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805 [2020-10-13 10:53:15,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 10:53:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 10:53:15,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:16,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:16,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:16,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:16,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 10:53:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:16,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 10:53:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:16,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 10:53:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:16,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 10:53:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:16,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 10:53:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:16,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 10:53:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:16,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 10:53:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:16,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 10:53:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:16,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 10:53:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:16,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 10:53:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:16,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 10:53:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:16,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 10:53:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:16,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-13 10:53:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:16,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:16,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:16,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:16,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:16,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:16,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:16,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:16,148 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 315 proven. 218 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-13 10:53:16,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116398271] [2020-10-13 10:53:16,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:16,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-13 10:53:16,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130952263] [2020-10-13 10:53:16,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-13 10:53:16,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:16,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-13 10:53:16,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2020-10-13 10:53:16,151 INFO L87 Difference]: Start difference. First operand 147 states and 148 transitions. Second operand 32 states. [2020-10-13 10:53:17,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:17,063 INFO L93 Difference]: Finished difference Result 214 states and 229 transitions. [2020-10-13 10:53:17,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-13 10:53:17,064 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 144 [2020-10-13 10:53:17,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:17,066 INFO L225 Difference]: With dead ends: 214 [2020-10-13 10:53:17,066 INFO L226 Difference]: Without dead ends: 150 [2020-10-13 10:53:17,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=475, Invalid=1687, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 10:53:17,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-13 10:53:17,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2020-10-13 10:53:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-13 10:53:17,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 150 transitions. [2020-10-13 10:53:17,081 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 150 transitions. Word has length 144 [2020-10-13 10:53:17,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:17,081 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 150 transitions. [2020-10-13 10:53:17,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-13 10:53:17,081 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 150 transitions. [2020-10-13 10:53:17,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-13 10:53:17,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:17,083 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:17,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 10:53:17,083 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:17,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:17,084 INFO L82 PathProgramCache]: Analyzing trace with hash -90440988, now seen corresponding path program 26 times [2020-10-13 10:53:17,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:17,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81469026] [2020-10-13 10:53:17,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:17,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:18,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:18,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 10:53:18,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:18,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-10-13 10:53:18,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 10:53:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-13 10:53:18,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:18,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:18,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:18,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:18,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:18,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:18,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:18,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:18,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:18,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:18,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:18,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:18,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 10:53:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:18,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:18,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:18,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:18,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:18,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:18,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:18,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 10:53:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:19,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 10:53:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:19,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 10:53:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:19,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 10:53:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:19,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 10:53:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:19,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 10:53:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:19,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 10:53:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:19,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 10:53:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:19,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 10:53:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:19,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 10:53:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:19,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 10:53:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:19,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 10:53:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:19,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:19,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:19,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:19,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:19,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:19,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:19,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 26 proven. 534 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-13 10:53:19,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81469026] [2020-10-13 10:53:19,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:19,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-13 10:53:19,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587946216] [2020-10-13 10:53:19,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-13 10:53:19,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:19,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-13 10:53:19,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 10:53:19,092 INFO L87 Difference]: Start difference. First operand 149 states and 150 transitions. Second operand 35 states. [2020-10-13 10:53:21,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:21,584 INFO L93 Difference]: Finished difference Result 162 states and 163 transitions. [2020-10-13 10:53:21,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-13 10:53:21,585 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 146 [2020-10-13 10:53:21,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:21,589 INFO L225 Difference]: With dead ends: 162 [2020-10-13 10:53:21,589 INFO L226 Difference]: Without dead ends: 160 [2020-10-13 10:53:21,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=148, Invalid=2714, Unknown=0, NotChecked=0, Total=2862 [2020-10-13 10:53:21,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-13 10:53:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2020-10-13 10:53:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-13 10:53:21,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 158 transitions. [2020-10-13 10:53:21,610 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 158 transitions. Word has length 146 [2020-10-13 10:53:21,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:21,610 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 158 transitions. [2020-10-13 10:53:21,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-13 10:53:21,610 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 158 transitions. [2020-10-13 10:53:21,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 10:53:21,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:21,612 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:21,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 10:53:21,613 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:21,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:21,613 INFO L82 PathProgramCache]: Analyzing trace with hash 798329150, now seen corresponding path program 27 times [2020-10-13 10:53:21,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:21,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32022462] [2020-10-13 10:53:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:21,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-13 10:53:22,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 697 [2020-10-13 10:53:22,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 10:53:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-13 10:53:22,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:22,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:22,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:22,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:22,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:22,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:22,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 10:53:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:22,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:22,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 10:53:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:53:22,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:22,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 10:53:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:22,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:22,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 10:53:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:22,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 10:53:22,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 10:53:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:22,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:22,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 10:53:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:53:22,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:22,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 10:53:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:22,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:22,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 10:53:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:22,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:22,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 10:53:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:22,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:22,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 10:53:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:22,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:22,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 10:53:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:22,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:22,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 10:53:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:22,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:22,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 10:53:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:22,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:22,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 10:53:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:22,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:22,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:22,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:22,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:22,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:22,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:22,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:22,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:22,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:22,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 420 proven. 196 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-13 10:53:23,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32022462] [2020-10-13 10:53:23,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:23,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-13 10:53:23,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209001561] [2020-10-13 10:53:23,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-13 10:53:23,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:23,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-13 10:53:23,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2020-10-13 10:53:23,032 INFO L87 Difference]: Start difference. First operand 157 states and 158 transitions. Second operand 34 states. [2020-10-13 10:53:23,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:23,791 INFO L93 Difference]: Finished difference Result 228 states and 244 transitions. [2020-10-13 10:53:23,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 10:53:23,791 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 154 [2020-10-13 10:53:23,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:23,793 INFO L225 Difference]: With dead ends: 228 [2020-10-13 10:53:23,793 INFO L226 Difference]: Without dead ends: 160 [2020-10-13 10:53:23,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=579, Invalid=1871, Unknown=0, NotChecked=0, Total=2450 [2020-10-13 10:53:23,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-13 10:53:23,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2020-10-13 10:53:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-13 10:53:23,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 160 transitions. [2020-10-13 10:53:23,807 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 160 transitions. Word has length 154 [2020-10-13 10:53:23,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:23,808 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 160 transitions. [2020-10-13 10:53:23,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-13 10:53:23,808 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 160 transitions. [2020-10-13 10:53:23,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-13 10:53:23,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:23,809 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:23,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 10:53:23,810 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:23,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:23,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1277558844, now seen corresponding path program 28 times [2020-10-13 10:53:23,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:23,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [205066806] [2020-10-13 10:53:23,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:23,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:24,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:24,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-13 10:53:24,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:24,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 747 [2020-10-13 10:53:24,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:24,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 10:53:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-13 10:53:24,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:25,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:25,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:25,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 10:53:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:53:25,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 10:53:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:25,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 10:53:25,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 10:53:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:25,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:53:25,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 10:53:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:25,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 10:53:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:25,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 10:53:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:25,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 10:53:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:25,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 10:53:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:25,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 10:53:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:25,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 10:53:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:25,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 10:53:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:53:25,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 10:53:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:25,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 10:53:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:25,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-13 10:53:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:25,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:25,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:25,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:25,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:25,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:53:25,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:25,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:25,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:25,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:25,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:25,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 28 proven. 617 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-13 10:53:25,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [205066806] [2020-10-13 10:53:25,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:25,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-13 10:53:25,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912743264] [2020-10-13 10:53:25,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-13 10:53:25,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:25,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-13 10:53:25,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=1260, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 10:53:25,769 INFO L87 Difference]: Start difference. First operand 159 states and 160 transitions. Second operand 37 states. [2020-10-13 10:53:28,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:28,525 INFO L93 Difference]: Finished difference Result 172 states and 173 transitions. [2020-10-13 10:53:28,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-13 10:53:28,526 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 156 [2020-10-13 10:53:28,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:28,528 INFO L225 Difference]: With dead ends: 172 [2020-10-13 10:53:28,528 INFO L226 Difference]: Without dead ends: 170 [2020-10-13 10:53:28,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=153, Invalid=2927, Unknown=0, NotChecked=0, Total=3080 [2020-10-13 10:53:28,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-13 10:53:28,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2020-10-13 10:53:28,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-13 10:53:28,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 168 transitions. [2020-10-13 10:53:28,545 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 168 transitions. Word has length 156 [2020-10-13 10:53:28,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:28,546 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 168 transitions. [2020-10-13 10:53:28,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-13 10:53:28,546 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 168 transitions. [2020-10-13 10:53:28,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-13 10:53:28,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:28,548 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:28,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 10:53:28,548 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:28,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:28,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1529825642, now seen corresponding path program 29 times [2020-10-13 10:53:28,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:28,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39191646] [2020-10-13 10:53:28,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:28,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-13 10:53:29,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 778 [2020-10-13 10:53:29,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 10:53:29,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:29,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 184 [2020-10-13 10:53:29,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:29,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:29,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:29,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:29,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:29,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 10:53:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:29,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:29,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:29,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:29,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:29,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 10:53:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:29,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:29,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:29,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:29,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:29,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 10:53:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:29,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:29,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:29,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:29,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:29,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 10:53:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:29,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:29,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:29,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:29,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:29,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 10:53:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:29,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:29,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:29,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:29,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:29,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 10:53:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:29,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:29,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:29,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:29,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:29,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 10:53:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:29,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:29,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:29,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:29,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:29,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 10:53:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:29,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:29,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:29,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:29,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:29,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 10:53:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:29,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:29,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:29,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:29,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:29,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 10:53:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:29,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:29,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:29,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:29,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:29,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:29,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:29,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:29,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 10:53:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:29,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:29,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:29,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:30,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:30,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:30,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:30,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:30,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:30,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:30,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:30,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 10:53:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:30,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:30,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:30,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:30,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:30,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:30,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:30,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:30,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:30,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:30,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:30,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 10:53:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:30,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:30,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:30,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:30,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:30,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:30,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:30,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:30,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:30,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:30,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:30,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-13 10:53:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:30,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:30,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:30,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:30,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:30,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:30,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:30,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:30,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:30,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:30,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:30,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-13 10:53:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:30,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:30,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:30,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:30,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:30,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:30,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:30,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:30,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:30,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:30,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:30,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 480 proven. 225 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-13 10:53:30,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39191646] [2020-10-13 10:53:30,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:30,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-13 10:53:30,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928733406] [2020-10-13 10:53:30,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-13 10:53:30,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:30,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-13 10:53:30,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 10:53:30,039 INFO L87 Difference]: Start difference. First operand 167 states and 168 transitions. Second operand 36 states. [2020-10-13 10:53:31,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:31,029 INFO L93 Difference]: Finished difference Result 242 states and 259 transitions. [2020-10-13 10:53:31,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-13 10:53:31,030 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 164 [2020-10-13 10:53:31,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:31,031 INFO L225 Difference]: With dead ends: 242 [2020-10-13 10:53:31,032 INFO L226 Difference]: Without dead ends: 170 [2020-10-13 10:53:31,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=649, Invalid=2107, Unknown=0, NotChecked=0, Total=2756 [2020-10-13 10:53:31,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-13 10:53:31,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 169. [2020-10-13 10:53:31,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-13 10:53:31,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 170 transitions. [2020-10-13 10:53:31,054 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 170 transitions. Word has length 164 [2020-10-13 10:53:31,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:31,055 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 170 transitions. [2020-10-13 10:53:31,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-13 10:53:31,055 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 170 transitions. [2020-10-13 10:53:31,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-13 10:53:31,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:31,056 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:31,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 10:53:31,057 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:31,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:31,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1924073492, now seen corresponding path program 30 times [2020-10-13 10:53:31,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:31,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407603155] [2020-10-13 10:53:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:31,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:32,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:32,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-13 10:53:32,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:32,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-10-13 10:53:32,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:32,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 10:53:32,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:32,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-13 10:53:32,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:33,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:33,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:33,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:33,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 10:53:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:33,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 10:53:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:33,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 10:53:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:33,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:53:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:33,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 10:53:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:33,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 10:53:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:33,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 10:53:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:33,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 10:53:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:33,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 10:53:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:33,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 10:53:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:33,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 10:53:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:33,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 10:53:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:33,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-13 10:53:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:33,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 10:53:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:33,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-13 10:53:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:33,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:33,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:33,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:33,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:33,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:33,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:33,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:33,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:33,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:33,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 30 proven. 706 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-13 10:53:33,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407603155] [2020-10-13 10:53:33,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:33,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-13 10:53:33,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045868992] [2020-10-13 10:53:33,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-13 10:53:33,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:33,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-13 10:53:33,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 10:53:33,686 INFO L87 Difference]: Start difference. First operand 169 states and 170 transitions. Second operand 39 states. [2020-10-13 10:53:37,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:37,391 INFO L93 Difference]: Finished difference Result 182 states and 183 transitions. [2020-10-13 10:53:37,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-13 10:53:37,392 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 166 [2020-10-13 10:53:37,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:37,394 INFO L225 Difference]: With dead ends: 182 [2020-10-13 10:53:37,395 INFO L226 Difference]: Without dead ends: 180 [2020-10-13 10:53:37,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=164, Invalid=3376, Unknown=0, NotChecked=0, Total=3540 [2020-10-13 10:53:37,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-13 10:53:37,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2020-10-13 10:53:37,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-13 10:53:37,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 178 transitions. [2020-10-13 10:53:37,411 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 178 transitions. Word has length 166 [2020-10-13 10:53:37,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:37,411 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 178 transitions. [2020-10-13 10:53:37,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-13 10:53:37,411 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 178 transitions. [2020-10-13 10:53:37,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-13 10:53:37,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:37,413 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:37,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 10:53:37,414 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:37,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:37,414 INFO L82 PathProgramCache]: Analyzing trace with hash 723543662, now seen corresponding path program 31 times [2020-10-13 10:53:37,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:37,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604976542] [2020-10-13 10:53:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:37,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:38,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:38,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-13 10:53:38,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:38,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-10-13 10:53:38,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:38,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-13 10:53:38,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:38,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-13 10:53:38,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:39,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:39,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:39,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 10:53:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 10:53:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 10:53:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:53:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 10:53:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 10:53:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 10:53:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 10:53:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 10:53:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 10:53:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 10:53:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:39,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 10:53:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-13 10:53:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 10:53:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-13 10:53:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-13 10:53:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:39,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:39,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:39,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:39,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:39,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:39,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:39,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:39,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:39,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:39,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:39,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 544 proven. 256 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-13 10:53:39,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604976542] [2020-10-13 10:53:39,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:39,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-13 10:53:39,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6369620] [2020-10-13 10:53:39,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-13 10:53:39,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:39,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-13 10:53:39,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 10:53:39,252 INFO L87 Difference]: Start difference. First operand 177 states and 178 transitions. Second operand 38 states. [2020-10-13 10:53:40,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:40,583 INFO L93 Difference]: Finished difference Result 256 states and 274 transitions. [2020-10-13 10:53:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-13 10:53:40,584 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 174 [2020-10-13 10:53:40,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:40,586 INFO L225 Difference]: With dead ends: 256 [2020-10-13 10:53:40,586 INFO L226 Difference]: Without dead ends: 180 [2020-10-13 10:53:40,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=723, Invalid=2357, Unknown=0, NotChecked=0, Total=3080 [2020-10-13 10:53:40,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-13 10:53:40,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 179. [2020-10-13 10:53:40,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-13 10:53:40,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 180 transitions. [2020-10-13 10:53:40,601 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 180 transitions. Word has length 174 [2020-10-13 10:53:40,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:40,601 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 180 transitions. [2020-10-13 10:53:40,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-13 10:53:40,602 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 180 transitions. [2020-10-13 10:53:40,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-13 10:53:40,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:40,603 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:40,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-13 10:53:40,603 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:40,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:40,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1620931180, now seen corresponding path program 32 times [2020-10-13 10:53:40,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:40,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033665259] [2020-10-13 10:53:40,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:40,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:42,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:42,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 10:53:42,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:42,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1415 [2020-10-13 10:53:42,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 10:53:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-13 10:53:42,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:43,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:43,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:43,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 10:53:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 10:53:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 10:53:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 10:53:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 10:53:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 10:53:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 10:53:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 10:53:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 10:53:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 10:53:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 10:53:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:43,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-13 10:53:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:43,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 10:53:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 10:53:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 10:53:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:43,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 10:53:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:43,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:43,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:43,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:43,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:43,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:43,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:43,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:43,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:43,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:43,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:43,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 32 proven. 801 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-13 10:53:43,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033665259] [2020-10-13 10:53:43,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:43,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-13 10:53:43,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138248705] [2020-10-13 10:53:43,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-13 10:53:43,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:43,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-13 10:53:43,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-10-13 10:53:43,421 INFO L87 Difference]: Start difference. First operand 179 states and 180 transitions. Second operand 41 states. [2020-10-13 10:53:46,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:46,943 INFO L93 Difference]: Finished difference Result 192 states and 193 transitions. [2020-10-13 10:53:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-13 10:53:46,944 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 176 [2020-10-13 10:53:46,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:46,946 INFO L225 Difference]: With dead ends: 192 [2020-10-13 10:53:46,947 INFO L226 Difference]: Without dead ends: 190 [2020-10-13 10:53:46,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=172, Invalid=3734, Unknown=0, NotChecked=0, Total=3906 [2020-10-13 10:53:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-13 10:53:46,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2020-10-13 10:53:46,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-13 10:53:46,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 188 transitions. [2020-10-13 10:53:46,964 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 188 transitions. Word has length 176 [2020-10-13 10:53:46,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:46,965 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 188 transitions. [2020-10-13 10:53:46,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-13 10:53:46,965 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 188 transitions. [2020-10-13 10:53:46,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-13 10:53:46,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:46,967 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:46,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-13 10:53:46,967 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:46,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:46,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1735722810, now seen corresponding path program 33 times [2020-10-13 10:53:46,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:46,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994716918] [2020-10-13 10:53:46,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:47,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:48,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:48,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-13 10:53:48,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:48,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-10-13 10:53:48,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:48,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 10:53:48,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:48,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 208 [2020-10-13 10:53:48,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:49,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:49,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:53:49,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:49,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 10:53:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:49,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 10:53:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 10:53:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 10:53:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:53:49,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 10:53:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:49,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 10:53:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 10:53:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 10:53:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 10:53:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 10:53:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 10:53:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:49,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-13 10:53:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:53:49,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 10:53:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 10:53:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 10:53:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 10:53:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:53:49,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-13 10:53:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:49,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:49,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:49,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:49,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:49,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:53:49,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:49,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:53:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 612 proven. 289 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-13 10:53:49,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994716918] [2020-10-13 10:53:49,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:49,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-13 10:53:49,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556610220] [2020-10-13 10:53:49,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-13 10:53:49,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:49,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-13 10:53:49,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=1177, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 10:53:49,302 INFO L87 Difference]: Start difference. First operand 187 states and 188 transitions. Second operand 40 states. [2020-10-13 10:53:50,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:50,834 INFO L93 Difference]: Finished difference Result 270 states and 289 transitions. [2020-10-13 10:53:50,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-13 10:53:50,835 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 184 [2020-10-13 10:53:50,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:50,838 INFO L225 Difference]: With dead ends: 270 [2020-10-13 10:53:50,838 INFO L226 Difference]: Without dead ends: 190 [2020-10-13 10:53:50,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=801, Invalid=2621, Unknown=0, NotChecked=0, Total=3422 [2020-10-13 10:53:50,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-13 10:53:50,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 189. [2020-10-13 10:53:50,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-13 10:53:50,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 190 transitions. [2020-10-13 10:53:50,855 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 190 transitions. Word has length 184 [2020-10-13 10:53:50,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:50,856 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 190 transitions. [2020-10-13 10:53:50,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-13 10:53:50,856 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 190 transitions. [2020-10-13 10:53:50,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-13 10:53:50,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:50,857 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:50,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-13 10:53:50,857 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:50,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:50,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1683988292, now seen corresponding path program 34 times [2020-10-13 10:53:50,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:50,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512091122] [2020-10-13 10:53:50,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:50,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:52,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:52,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-13 10:53:52,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:52,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1435 [2020-10-13 10:53:52,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 10:53:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 215 [2020-10-13 10:53:52,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:53:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:53:53,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:53:53,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:53:53,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 10:53:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 10:53:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 10:53:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 10:53:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 10:53:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 10:53:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 10:53:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 10:53:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 10:53:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 10:53:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 10:53:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 10:53:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 10:53:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 10:53:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-13 10:53:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-13 10:53:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-13 10:53:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:53,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:53,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:53,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:53:53,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:53,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:53:53,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:53,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:53:53,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:53:53,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:53:53,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:53:53,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 34 proven. 902 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-13 10:53:53,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512091122] [2020-10-13 10:53:53,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:53:53,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-10-13 10:53:53,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762750199] [2020-10-13 10:53:53,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-10-13 10:53:53,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:53:53,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-10-13 10:53:53,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2020-10-13 10:53:53,902 INFO L87 Difference]: Start difference. First operand 189 states and 190 transitions. Second operand 43 states. [2020-10-13 10:53:57,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:53:57,904 INFO L93 Difference]: Finished difference Result 202 states and 203 transitions. [2020-10-13 10:53:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-13 10:53:57,905 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 186 [2020-10-13 10:53:57,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:53:57,907 INFO L225 Difference]: With dead ends: 202 [2020-10-13 10:53:57,907 INFO L226 Difference]: Without dead ends: 200 [2020-10-13 10:53:57,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=180, Invalid=4110, Unknown=0, NotChecked=0, Total=4290 [2020-10-13 10:53:57,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-13 10:53:57,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2020-10-13 10:53:57,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-13 10:53:57,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 198 transitions. [2020-10-13 10:53:57,923 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 198 transitions. Word has length 186 [2020-10-13 10:53:57,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:53:57,923 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 198 transitions. [2020-10-13 10:53:57,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-10-13 10:53:57,923 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 198 transitions. [2020-10-13 10:53:57,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-13 10:53:57,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:53:57,924 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:53:57,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-13 10:53:57,925 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:53:57,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:53:57,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1759588962, now seen corresponding path program 35 times [2020-10-13 10:53:57,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:53:57,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712913766] [2020-10-13 10:53:57,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:53:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:53:57,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:53:59,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:53:59,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-13 10:53:59,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:53:59,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1193 [2020-10-13 10:53:59,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:53:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-13 10:53:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:53:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-13 10:53:59,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:54:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:54:00,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:54:00,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:54:00,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 10:54:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 10:54:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 10:54:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 10:54:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:00,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 10:54:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:00,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 10:54:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 10:54:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 10:54:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:00,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 10:54:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 10:54:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:00,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 10:54:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 10:54:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 10:54:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 10:54:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-13 10:54:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-13 10:54:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-13 10:54:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-13 10:54:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:00,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:00,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:00,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:00,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:00,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:00,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:00,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:00,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:00,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:00,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:00,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 684 proven. 324 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-10-13 10:54:00,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712913766] [2020-10-13 10:54:00,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:54:00,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-13 10:54:00,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381524882] [2020-10-13 10:54:00,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-13 10:54:00,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:54:00,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-13 10:54:00,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=1299, Unknown=0, NotChecked=0, Total=1722 [2020-10-13 10:54:00,210 INFO L87 Difference]: Start difference. First operand 197 states and 198 transitions. Second operand 42 states. [2020-10-13 10:54:01,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:54:01,858 INFO L93 Difference]: Finished difference Result 284 states and 304 transitions. [2020-10-13 10:54:01,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-13 10:54:01,859 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 194 [2020-10-13 10:54:01,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:54:01,861 INFO L225 Difference]: With dead ends: 284 [2020-10-13 10:54:01,861 INFO L226 Difference]: Without dead ends: 200 [2020-10-13 10:54:01,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=883, Invalid=2899, Unknown=0, NotChecked=0, Total=3782 [2020-10-13 10:54:01,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-13 10:54:01,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2020-10-13 10:54:01,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-13 10:54:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 200 transitions. [2020-10-13 10:54:01,901 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 200 transitions. Word has length 194 [2020-10-13 10:54:01,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:54:01,902 INFO L479 AbstractCegarLoop]: Abstraction has 199 states and 200 transitions. [2020-10-13 10:54:01,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-13 10:54:01,902 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 200 transitions. [2020-10-13 10:54:01,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-13 10:54:01,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:54:01,904 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:54:01,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-13 10:54:01,904 INFO L427 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:54:01,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:54:01,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1047260828, now seen corresponding path program 36 times [2020-10-13 10:54:01,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:54:01,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229228254] [2020-10-13 10:54:01,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:54:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:01,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:03,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:03,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-13 10:54:03,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:03,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2038 [2020-10-13 10:54:03,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:03,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 10:54:03,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:54:03,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 227 [2020-10-13 10:54:03,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:54:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:54:05,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:54:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:54:05,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 10:54:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 10:54:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:05,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 10:54:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 10:54:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 10:54:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 10:54:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 10:54:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 10:54:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:05,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 10:54:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:05,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 10:54:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:05,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 10:54:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:05,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 10:54:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-13 10:54:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-13 10:54:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-13 10:54:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 10:54:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:05,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-13 10:54:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-13 10:54:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:05,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:05,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:05,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:05,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:05,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:05,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:05,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:05,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:05,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:05,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 36 proven. 1009 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-10-13 10:54:05,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229228254] [2020-10-13 10:54:05,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:54:05,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-10-13 10:54:05,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203985033] [2020-10-13 10:54:05,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-10-13 10:54:05,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:54:05,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-10-13 10:54:05,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1892, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 10:54:05,671 INFO L87 Difference]: Start difference. First operand 199 states and 200 transitions. Second operand 45 states. [2020-10-13 10:54:10,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:54:10,061 INFO L93 Difference]: Finished difference Result 212 states and 213 transitions. [2020-10-13 10:54:10,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-13 10:54:10,062 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 196 [2020-10-13 10:54:10,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:54:10,064 INFO L225 Difference]: With dead ends: 212 [2020-10-13 10:54:10,064 INFO L226 Difference]: Without dead ends: 210 [2020-10-13 10:54:10,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=185, Invalid=4371, Unknown=0, NotChecked=0, Total=4556 [2020-10-13 10:54:10,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-10-13 10:54:10,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 207. [2020-10-13 10:54:10,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-10-13 10:54:10,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 208 transitions. [2020-10-13 10:54:10,082 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 208 transitions. Word has length 196 [2020-10-13 10:54:10,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:54:10,083 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 208 transitions. [2020-10-13 10:54:10,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-10-13 10:54:10,083 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 208 transitions. [2020-10-13 10:54:10,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-13 10:54:10,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:54:10,085 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:54:10,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-13 10:54:10,085 INFO L427 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:54:10,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:54:10,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1158527754, now seen corresponding path program 37 times [2020-10-13 10:54:10,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:54:10,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453047984] [2020-10-13 10:54:10,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:54:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:10,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:11,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:11,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 10:54:11,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:11,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1382 [2020-10-13 10:54:11,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:11,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 10:54:11,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:54:11,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 232 [2020-10-13 10:54:11,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:54:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:54:12,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:54:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:54:12,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 10:54:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 10:54:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 10:54:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:12,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 10:54:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 10:54:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:12,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 10:54:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 10:54:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 10:54:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 10:54:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 10:54:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 10:54:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 10:54:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-13 10:54:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-13 10:54:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-13 10:54:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 10:54:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-13 10:54:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-13 10:54:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 10:54:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:12,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:12,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:12,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:12,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:12,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:12,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:12,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:12,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:12,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:12,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:12,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 760 proven. 361 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-13 10:54:12,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453047984] [2020-10-13 10:54:12,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:54:12,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-13 10:54:12,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840756004] [2020-10-13 10:54:12,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-13 10:54:12,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:54:12,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-13 10:54:12,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=1427, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 10:54:12,576 INFO L87 Difference]: Start difference. First operand 207 states and 208 transitions. Second operand 44 states. [2020-10-13 10:54:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:54:14,461 INFO L93 Difference]: Finished difference Result 298 states and 319 transitions. [2020-10-13 10:54:14,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-13 10:54:14,462 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 204 [2020-10-13 10:54:14,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:54:14,464 INFO L225 Difference]: With dead ends: 298 [2020-10-13 10:54:14,464 INFO L226 Difference]: Without dead ends: 210 [2020-10-13 10:54:14,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=969, Invalid=3191, Unknown=0, NotChecked=0, Total=4160 [2020-10-13 10:54:14,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-10-13 10:54:14,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2020-10-13 10:54:14,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-13 10:54:14,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 210 transitions. [2020-10-13 10:54:14,485 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 210 transitions. Word has length 204 [2020-10-13 10:54:14,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:54:14,485 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 210 transitions. [2020-10-13 10:54:14,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-13 10:54:14,485 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 210 transitions. [2020-10-13 10:54:14,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-13 10:54:14,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:54:14,487 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:54:14,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-13 10:54:14,487 INFO L427 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:54:14,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:54:14,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1220493196, now seen corresponding path program 38 times [2020-10-13 10:54:14,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:54:14,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952923766] [2020-10-13 10:54:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:54:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:14,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:16,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:16,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-13 10:54:16,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:16,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1944 [2020-10-13 10:54:16,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-13 10:54:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:54:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 239 [2020-10-13 10:54:16,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:54:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:54:18,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:18,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:54:18,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:54:18,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 10:54:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:18,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 10:54:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:18,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:54:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:18,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 10:54:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:18,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 10:54:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:18,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 10:54:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:18,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 10:54:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:18,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 10:54:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:18,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 10:54:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:18,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 10:54:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:18,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 10:54:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:18,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-13 10:54:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:18,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 10:54:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:18,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-13 10:54:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:18,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-13 10:54:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:18,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-13 10:54:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:18,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-13 10:54:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:18,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-13 10:54:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:18,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-13 10:54:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:18,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:18,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:18,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:18,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:18,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:18,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:18,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:18,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 38 proven. 1122 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-13 10:54:18,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952923766] [2020-10-13 10:54:18,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:54:18,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2020-10-13 10:54:18,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881912257] [2020-10-13 10:54:18,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-10-13 10:54:18,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:54:18,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-10-13 10:54:18,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=2070, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 10:54:18,402 INFO L87 Difference]: Start difference. First operand 209 states and 210 transitions. Second operand 47 states. [2020-10-13 10:54:23,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:54:23,092 INFO L93 Difference]: Finished difference Result 222 states and 223 transitions. [2020-10-13 10:54:23,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-13 10:54:23,094 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 206 [2020-10-13 10:54:23,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:54:23,096 INFO L225 Difference]: With dead ends: 222 [2020-10-13 10:54:23,096 INFO L226 Difference]: Without dead ends: 220 [2020-10-13 10:54:23,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=193, Invalid=4777, Unknown=0, NotChecked=0, Total=4970 [2020-10-13 10:54:23,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-13 10:54:23,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2020-10-13 10:54:23,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-13 10:54:23,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 218 transitions. [2020-10-13 10:54:23,115 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 218 transitions. Word has length 206 [2020-10-13 10:54:23,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:54:23,116 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 218 transitions. [2020-10-13 10:54:23,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-10-13 10:54:23,116 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 218 transitions. [2020-10-13 10:54:23,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-13 10:54:23,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:54:23,118 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:54:23,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-13 10:54:23,118 INFO L427 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:54:23,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:54:23,118 INFO L82 PathProgramCache]: Analyzing trace with hash 404995790, now seen corresponding path program 39 times [2020-10-13 10:54:23,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:54:23,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580204709] [2020-10-13 10:54:23,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:54:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:23,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:24,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:24,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-10-13 10:54:24,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:24,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1753 [2020-10-13 10:54:24,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-13 10:54:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:54:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-13 10:54:24,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:25,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:54:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:25,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:25,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:25,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:54:25,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:25,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 10:54:25,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:25,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:54:25,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:25,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:54:25,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:25,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 10:54:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:25,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:25,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:25,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:25,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:25,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:25,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:25,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:25,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 10:54:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:25,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:25,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:25,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:25,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:25,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:25,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:25,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:25,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:25,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:54:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:25,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:25,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:25,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:25,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:25,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:25,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:25,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:25,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 10:54:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:25,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:25,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:25,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:25,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:25,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:25,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:25,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:25,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:25,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:25,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 10:54:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:25,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:25,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:25,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:25,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:25,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:25,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:25,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:25,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:25,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:25,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:25,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 10:54:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 10:54:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 10:54:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 10:54:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 10:54:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 10:54:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-13 10:54:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 10:54:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-13 10:54:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-13 10:54:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-13 10:54:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-13 10:54:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-13 10:54:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-13 10:54:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:26,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-10-13 10:54:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:26,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:26,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:26,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:26,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:26,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:26,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:26,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:26,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:26,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:26,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2000 backedges. 840 proven. 400 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-10-13 10:54:26,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580204709] [2020-10-13 10:54:26,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:54:26,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-13 10:54:26,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776290827] [2020-10-13 10:54:26,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-13 10:54:26,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:54:26,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-13 10:54:26,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2020-10-13 10:54:26,099 INFO L87 Difference]: Start difference. First operand 217 states and 218 transitions. Second operand 46 states. [2020-10-13 10:54:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:54:28,194 INFO L93 Difference]: Finished difference Result 312 states and 334 transitions. [2020-10-13 10:54:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-13 10:54:28,195 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 214 [2020-10-13 10:54:28,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:54:28,198 INFO L225 Difference]: With dead ends: 312 [2020-10-13 10:54:28,198 INFO L226 Difference]: Without dead ends: 220 [2020-10-13 10:54:28,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1059, Invalid=3497, Unknown=0, NotChecked=0, Total=4556 [2020-10-13 10:54:28,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-13 10:54:28,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 219. [2020-10-13 10:54:28,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-10-13 10:54:28,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 220 transitions. [2020-10-13 10:54:28,218 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 220 transitions. Word has length 214 [2020-10-13 10:54:28,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:54:28,218 INFO L479 AbstractCegarLoop]: Abstraction has 219 states and 220 transitions. [2020-10-13 10:54:28,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-13 10:54:28,219 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 220 transitions. [2020-10-13 10:54:28,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-13 10:54:28,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:54:28,220 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:54:28,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-13 10:54:28,221 INFO L427 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:54:28,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:54:28,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1251707700, now seen corresponding path program 40 times [2020-10-13 10:54:28,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:54:28,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203888246] [2020-10-13 10:54:28,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:54:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:28,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:30,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:30,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-13 10:54:30,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:30,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2185 [2020-10-13 10:54:30,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 10:54:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:54:30,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-13 10:54:30,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:54:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:54:32,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 10:54:32,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:54:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:54:32,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 10:54:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 10:54:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 10:54:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 10:54:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 10:54:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 10:54:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 10:54:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 10:54:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 10:54:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 10:54:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-13 10:54:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 10:54:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 10:54:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 10:54:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 10:54:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-13 10:54:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-13 10:54:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:32,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-13 10:54:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:32,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-13 10:54:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:32,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-13 10:54:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:32,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:32,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:32,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:32,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:32,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:32,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:32,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:32,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:32,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:32,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:32,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2041 backedges. 40 proven. 1241 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-10-13 10:54:32,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203888246] [2020-10-13 10:54:32,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:54:32,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2020-10-13 10:54:32,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079359270] [2020-10-13 10:54:32,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-10-13 10:54:32,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:54:32,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-10-13 10:54:32,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=2256, Unknown=0, NotChecked=0, Total=2352 [2020-10-13 10:54:32,620 INFO L87 Difference]: Start difference. First operand 219 states and 220 transitions. Second operand 49 states. [2020-10-13 10:54:37,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:54:37,702 INFO L93 Difference]: Finished difference Result 232 states and 233 transitions. [2020-10-13 10:54:37,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-10-13 10:54:37,704 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 216 [2020-10-13 10:54:37,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:54:37,706 INFO L225 Difference]: With dead ends: 232 [2020-10-13 10:54:37,707 INFO L226 Difference]: Without dead ends: 230 [2020-10-13 10:54:37,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=201, Invalid=5201, Unknown=0, NotChecked=0, Total=5402 [2020-10-13 10:54:37,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-13 10:54:37,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 227. [2020-10-13 10:54:37,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-13 10:54:37,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 228 transitions. [2020-10-13 10:54:37,729 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 228 transitions. Word has length 216 [2020-10-13 10:54:37,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:54:37,730 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 228 transitions. [2020-10-13 10:54:37,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-10-13 10:54:37,730 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 228 transitions. [2020-10-13 10:54:37,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-13 10:54:37,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:54:37,732 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:54:37,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-13 10:54:37,732 INFO L427 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:54:37,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:54:37,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1490656038, now seen corresponding path program 41 times [2020-10-13 10:54:37,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:54:37,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028812708] [2020-10-13 10:54:37,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:54:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:37,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:39,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:39,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 10:54:39,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:39,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2041 [2020-10-13 10:54:39,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:39,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-13 10:54:39,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:54:39,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 256 [2020-10-13 10:54:39,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:54:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:54:41,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:54:41,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:54:41,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 10:54:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:41,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 10:54:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:41,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 10:54:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 10:54:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 10:54:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 10:54:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 10:54:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 10:54:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 10:54:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:41,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 10:54:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-13 10:54:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 10:54:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 10:54:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:41,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 10:54:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:41,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 10:54:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-13 10:54:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:41,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-13 10:54:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:41,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-13 10:54:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:41,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-13 10:54:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:41,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-13 10:54:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:41,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-13 10:54:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:41,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:41,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:41,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:41,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:41,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:41,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:41,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:41,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2205 backedges. 924 proven. 441 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-10-13 10:54:41,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028812708] [2020-10-13 10:54:41,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:54:41,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2020-10-13 10:54:41,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897635672] [2020-10-13 10:54:41,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-10-13 10:54:41,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:54:41,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-10-13 10:54:41,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=555, Invalid=1701, Unknown=0, NotChecked=0, Total=2256 [2020-10-13 10:54:41,178 INFO L87 Difference]: Start difference. First operand 227 states and 228 transitions. Second operand 48 states. [2020-10-13 10:54:42,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:54:42,991 INFO L93 Difference]: Finished difference Result 326 states and 349 transitions. [2020-10-13 10:54:42,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-13 10:54:42,992 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 224 [2020-10-13 10:54:42,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:54:42,994 INFO L225 Difference]: With dead ends: 326 [2020-10-13 10:54:42,994 INFO L226 Difference]: Without dead ends: 230 [2020-10-13 10:54:42,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1153, Invalid=3817, Unknown=0, NotChecked=0, Total=4970 [2020-10-13 10:54:42,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-13 10:54:43,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 229. [2020-10-13 10:54:43,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-13 10:54:43,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 230 transitions. [2020-10-13 10:54:43,015 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 230 transitions. Word has length 224 [2020-10-13 10:54:43,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:54:43,016 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 230 transitions. [2020-10-13 10:54:43,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-10-13 10:54:43,016 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 230 transitions. [2020-10-13 10:54:43,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-13 10:54:43,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:54:43,018 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:54:43,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-13 10:54:43,018 INFO L427 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:54:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:54:43,018 INFO L82 PathProgramCache]: Analyzing trace with hash -748328028, now seen corresponding path program 42 times [2020-10-13 10:54:43,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:54:43,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788246007] [2020-10-13 10:54:43,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:54:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:43,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:45,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:45,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-13 10:54:45,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:45,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2763 [2020-10-13 10:54:45,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:45,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-13 10:54:45,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:54:45,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-13 10:54:45,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:54:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:54:48,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:54:48,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:54:48,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 10:54:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:48,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 10:54:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 10:54:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 10:54:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 10:54:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 10:54:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 10:54:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 10:54:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 10:54:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 10:54:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 10:54:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 10:54:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 10:54:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-13 10:54:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-13 10:54:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-13 10:54:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-13 10:54:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:54:48,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-13 10:54:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-13 10:54:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-13 10:54:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-13 10:54:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:48,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:48,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:48,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:48,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:48,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:48,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:48,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:48,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:48,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:48,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:48,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2248 backedges. 42 proven. 1366 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-10-13 10:54:48,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788246007] [2020-10-13 10:54:48,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:54:48,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2020-10-13 10:54:48,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218729737] [2020-10-13 10:54:48,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-10-13 10:54:48,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:54:48,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-10-13 10:54:48,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=2451, Unknown=0, NotChecked=0, Total=2550 [2020-10-13 10:54:48,190 INFO L87 Difference]: Start difference. First operand 229 states and 230 transitions. Second operand 51 states. [2020-10-13 10:54:54,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:54:54,046 INFO L93 Difference]: Finished difference Result 242 states and 243 transitions. [2020-10-13 10:54:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-13 10:54:54,047 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 226 [2020-10-13 10:54:54,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:54:54,050 INFO L225 Difference]: With dead ends: 242 [2020-10-13 10:54:54,050 INFO L226 Difference]: Without dead ends: 240 [2020-10-13 10:54:54,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=212, Invalid=5794, Unknown=0, NotChecked=0, Total=6006 [2020-10-13 10:54:54,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-13 10:54:54,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 237. [2020-10-13 10:54:54,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-13 10:54:54,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 238 transitions. [2020-10-13 10:54:54,068 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 238 transitions. Word has length 226 [2020-10-13 10:54:54,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:54:54,069 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 238 transitions. [2020-10-13 10:54:54,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-10-13 10:54:54,069 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 238 transitions. [2020-10-13 10:54:54,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-13 10:54:54,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:54:54,071 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:54:54,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-13 10:54:54,071 INFO L427 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:54:54,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:54:54,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1396849150, now seen corresponding path program 43 times [2020-10-13 10:54:54,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:54:54,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1617403135] [2020-10-13 10:54:54,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:54:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:54,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:56,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:56,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-13 10:54:56,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:56,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1919 [2020-10-13 10:54:56,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:56,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-13 10:54:56,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:54:56,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-13 10:54:56,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:54:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:54:57,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:54:57,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:54:57,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 10:54:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 10:54:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 10:54:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 10:54:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 10:54:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 10:54:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 10:54:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 10:54:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:54:57,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 10:54:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 10:54:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 10:54:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 10:54:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 10:54:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-13 10:54:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-13 10:54:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-13 10:54:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-13 10:54:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-13 10:54:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-13 10:54:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-13 10:54:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-13 10:54:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-13 10:54:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:54:57,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:54:57,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:54:57,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:54:57,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:54:57,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:54:57,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:54:57,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:54:57,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:54:57,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:54:57,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:54:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 1012 proven. 484 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-10-13 10:54:57,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1617403135] [2020-10-13 10:54:57,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:54:57,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2020-10-13 10:54:57,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511942831] [2020-10-13 10:54:57,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-10-13 10:54:57,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:54:57,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-10-13 10:54:57,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=603, Invalid=1847, Unknown=0, NotChecked=0, Total=2450 [2020-10-13 10:54:57,526 INFO L87 Difference]: Start difference. First operand 237 states and 238 transitions. Second operand 50 states. [2020-10-13 10:55:00,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:55:00,290 INFO L93 Difference]: Finished difference Result 340 states and 364 transitions. [2020-10-13 10:55:00,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-10-13 10:55:00,292 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 234 [2020-10-13 10:55:00,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:55:00,294 INFO L225 Difference]: With dead ends: 340 [2020-10-13 10:55:00,295 INFO L226 Difference]: Without dead ends: 240 [2020-10-13 10:55:00,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1251, Invalid=4151, Unknown=0, NotChecked=0, Total=5402 [2020-10-13 10:55:00,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-13 10:55:00,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2020-10-13 10:55:00,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-10-13 10:55:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 240 transitions. [2020-10-13 10:55:00,317 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 240 transitions. Word has length 234 [2020-10-13 10:55:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:55:00,318 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 240 transitions. [2020-10-13 10:55:00,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-10-13 10:55:00,318 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 240 transitions. [2020-10-13 10:55:00,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-13 10:55:00,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:55:00,320 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:55:00,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-13 10:55:00,320 INFO L427 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:55:00,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:55:00,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1977222396, now seen corresponding path program 44 times [2020-10-13 10:55:00,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:55:00,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661487334] [2020-10-13 10:55:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:55:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:00,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:03,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:03,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-13 10:55:03,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3270 [2020-10-13 10:55:03,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-13 10:55:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:55:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 275 [2020-10-13 10:55:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:55:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:55:06,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:55:06,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:55:06,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 10:55:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 10:55:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 10:55:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 10:55:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 10:55:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 10:55:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 10:55:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 10:55:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 10:55:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 10:55:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 10:55:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-13 10:55:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:55:06,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-13 10:55:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:55:06,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-13 10:55:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 10:55:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-13 10:55:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-13 10:55:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 10:55:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-13 10:55:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-13 10:55:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-13 10:55:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-10-13 10:55:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:06,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:06,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:06,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:06,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:06,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:06,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:06,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 44 proven. 1497 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-10-13 10:55:06,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661487334] [2020-10-13 10:55:06,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:55:06,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2020-10-13 10:55:06,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980229251] [2020-10-13 10:55:06,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-10-13 10:55:06,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:55:06,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-10-13 10:55:06,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=2653, Unknown=0, NotChecked=0, Total=2756 [2020-10-13 10:55:06,309 INFO L87 Difference]: Start difference. First operand 239 states and 240 transitions. Second operand 53 states. [2020-10-13 10:55:12,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:55:12,406 INFO L93 Difference]: Finished difference Result 252 states and 253 transitions. [2020-10-13 10:55:12,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-13 10:55:12,407 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 236 [2020-10-13 10:55:12,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:55:12,410 INFO L225 Difference]: With dead ends: 252 [2020-10-13 10:55:12,410 INFO L226 Difference]: Without dead ends: 250 [2020-10-13 10:55:12,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=215, Invalid=6105, Unknown=0, NotChecked=0, Total=6320 [2020-10-13 10:55:12,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-13 10:55:12,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 247. [2020-10-13 10:55:12,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-13 10:55:12,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 248 transitions. [2020-10-13 10:55:12,430 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 248 transitions. Word has length 236 [2020-10-13 10:55:12,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:55:12,431 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 248 transitions. [2020-10-13 10:55:12,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-10-13 10:55:12,431 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 248 transitions. [2020-10-13 10:55:12,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-13 10:55:12,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:55:12,433 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:55:12,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-13 10:55:12,434 INFO L427 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:55:12,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:55:12,434 INFO L82 PathProgramCache]: Analyzing trace with hash 529791830, now seen corresponding path program 45 times [2020-10-13 10:55:12,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:55:12,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217968836] [2020-10-13 10:55:12,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:55:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:12,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:14,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:14,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 10:55:14,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:14,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2029 [2020-10-13 10:55:14,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:14,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-13 10:55:14,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:55:14,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 280 [2020-10-13 10:55:14,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:15,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:55:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:15,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:15,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:15,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:55:15,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:15,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:15,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:15,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:55:15,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:15,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:55:15,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:15,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 10:55:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:15,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:15,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:15,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:15,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:15,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:15,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:15,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:15,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:15,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:15,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 10:55:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:15,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:15,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:15,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:15,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:15,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:15,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:15,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:15,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:15,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 10:55:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:15,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:15,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:15,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:15,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:15,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:15,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:15,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:15,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:15,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:15,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:15,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 10:55:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:15,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:15,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:15,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:15,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:15,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:15,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:15,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:15,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 10:55:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:15,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:15,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:15,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:15,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:15,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:15,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:15,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 10:55:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:15,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:15,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:15,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:15,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:15,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:15,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:15,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:15,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:15,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:15,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:15,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 10:55:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:15,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:15,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:15,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:15,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:15,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:15,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:15,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:15,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 10:55:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:15,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:15,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:15,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:15,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:15,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:15,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:15,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:15,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:15,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:15,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:15,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 10:55:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:15,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:15,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:15,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:15,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:15,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:15,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:15,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:15,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:15,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:15,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:15,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 10:55:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:15,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 10:55:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-13 10:55:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-13 10:55:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-13 10:55:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 10:55:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-13 10:55:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-13 10:55:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 10:55:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:55:16,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-13 10:55:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-13 10:55:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-13 10:55:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-10-13 10:55:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-13 10:55:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:16,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:16,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:16,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:16,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:16,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:16,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:16,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 1104 proven. 529 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-10-13 10:55:16,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217968836] [2020-10-13 10:55:16,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:55:16,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2020-10-13 10:55:16,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139791116] [2020-10-13 10:55:16,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-10-13 10:55:16,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:55:16,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-10-13 10:55:16,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=653, Invalid=1999, Unknown=0, NotChecked=0, Total=2652 [2020-10-13 10:55:16,112 INFO L87 Difference]: Start difference. First operand 247 states and 248 transitions. Second operand 52 states. [2020-10-13 10:55:18,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:55:18,829 INFO L93 Difference]: Finished difference Result 354 states and 379 transitions. [2020-10-13 10:55:18,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-13 10:55:18,831 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 244 [2020-10-13 10:55:18,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:55:18,833 INFO L225 Difference]: With dead ends: 354 [2020-10-13 10:55:18,833 INFO L226 Difference]: Without dead ends: 250 [2020-10-13 10:55:18,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1353, Invalid=4499, Unknown=0, NotChecked=0, Total=5852 [2020-10-13 10:55:18,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-13 10:55:18,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2020-10-13 10:55:18,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-13 10:55:18,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 250 transitions. [2020-10-13 10:55:18,856 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 250 transitions. Word has length 244 [2020-10-13 10:55:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:55:18,856 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 250 transitions. [2020-10-13 10:55:18,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-10-13 10:55:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 250 transitions. [2020-10-13 10:55:18,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-13 10:55:18,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:55:18,858 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:55:18,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-13 10:55:18,858 INFO L427 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:55:18,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:55:18,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1633722580, now seen corresponding path program 46 times [2020-10-13 10:55:18,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:55:18,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131756099] [2020-10-13 10:55:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:55:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:18,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:21,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:21,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-10-13 10:55:21,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2254 [2020-10-13 10:55:21,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 53 [2020-10-13 10:55:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:55:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-13 10:55:21,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:55:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:55:23,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:55:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:55:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 10:55:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:55:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 10:55:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 10:55:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 10:55:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 10:55:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 10:55:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 10:55:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 10:55:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 10:55:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-13 10:55:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 10:55:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-13 10:55:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-13 10:55:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-13 10:55:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:55:23,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-13 10:55:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:55:23,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-13 10:55:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:55:23,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-13 10:55:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-10-13 10:55:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-13 10:55:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-13 10:55:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-13 10:55:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-13 10:55:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:23,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:23,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:23,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:23,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:23,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:23,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:23,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2692 backedges. 46 proven. 1634 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-10-13 10:55:23,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131756099] [2020-10-13 10:55:23,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:55:23,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2020-10-13 10:55:23,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313224034] [2020-10-13 10:55:23,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-10-13 10:55:23,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:55:23,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-10-13 10:55:23,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=2863, Unknown=0, NotChecked=0, Total=2970 [2020-10-13 10:55:23,965 INFO L87 Difference]: Start difference. First operand 249 states and 250 transitions. Second operand 55 states. [2020-10-13 10:55:30,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:55:30,907 INFO L93 Difference]: Finished difference Result 262 states and 263 transitions. [2020-10-13 10:55:30,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-10-13 10:55:30,909 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 246 [2020-10-13 10:55:30,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:55:30,911 INFO L225 Difference]: With dead ends: 262 [2020-10-13 10:55:30,911 INFO L226 Difference]: Without dead ends: 260 [2020-10-13 10:55:30,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=228, Invalid=6744, Unknown=0, NotChecked=0, Total=6972 [2020-10-13 10:55:30,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-13 10:55:30,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 257. [2020-10-13 10:55:30,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-13 10:55:30,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 258 transitions. [2020-10-13 10:55:30,930 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 258 transitions. Word has length 246 [2020-10-13 10:55:30,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:55:30,930 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 258 transitions. [2020-10-13 10:55:30,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-10-13 10:55:30,930 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 258 transitions. [2020-10-13 10:55:30,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-13 10:55:30,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:55:30,932 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:55:30,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-13 10:55:30,932 INFO L427 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:55:30,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:55:30,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1374863570, now seen corresponding path program 47 times [2020-10-13 10:55:30,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:55:30,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931916201] [2020-10-13 10:55:30,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:55:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:30,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:33,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:33,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-13 10:55:33,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:33,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2316 [2020-10-13 10:55:33,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:33,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-13 10:55:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:55:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 292 [2020-10-13 10:55:33,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:55:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:55:34,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:55:34,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:55:34,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 10:55:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:55:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 10:55:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 10:55:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 10:55:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 10:55:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 10:55:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 10:55:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 10:55:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 10:55:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-13 10:55:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 10:55:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-13 10:55:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-13 10:55:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-13 10:55:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:34,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:34,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:34,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:34,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:34,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-13 10:55:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:34,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:35,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:35,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:35,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:35,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:35,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:35,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:35,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:35,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-13 10:55:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:35,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:35,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:35,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:35,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:35,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:55:35,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:35,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:35,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:35,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:35,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:35,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-13 10:55:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:35,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:35,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:35,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:35,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:35,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:35,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:35,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:35,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-10-13 10:55:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:35,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:35,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:35,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:35,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:35,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:35,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:35,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:35,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-13 10:55:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:35,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:35,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:35,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:35,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:35,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:35,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:35,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:35,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:35,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:35,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:35,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-13 10:55:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:35,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:35,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:35,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:35,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:35,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:35,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:35,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:35,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:35,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:35,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:35,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-13 10:55:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:35,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:35,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:35,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:35,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:35,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:35,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:35,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:35,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:35,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:35,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:35,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-13 10:55:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:35,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:35,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:35,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:35,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:35,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:35,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:35,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:35,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:35,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:35,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:35,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-13 10:55:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:35,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:35,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:35,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:35,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:35,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:35,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:35,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:35,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:35,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:35,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2880 backedges. 1200 proven. 576 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-10-13 10:55:35,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931916201] [2020-10-13 10:55:35,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:55:35,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2020-10-13 10:55:35,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887970261] [2020-10-13 10:55:35,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-10-13 10:55:35,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:55:35,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-10-13 10:55:35,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=705, Invalid=2157, Unknown=0, NotChecked=0, Total=2862 [2020-10-13 10:55:35,087 INFO L87 Difference]: Start difference. First operand 257 states and 258 transitions. Second operand 54 states. [2020-10-13 10:55:38,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:55:38,010 INFO L93 Difference]: Finished difference Result 368 states and 394 transitions. [2020-10-13 10:55:38,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-13 10:55:38,011 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 254 [2020-10-13 10:55:38,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:55:38,014 INFO L225 Difference]: With dead ends: 368 [2020-10-13 10:55:38,014 INFO L226 Difference]: Without dead ends: 260 [2020-10-13 10:55:38,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 972 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1459, Invalid=4861, Unknown=0, NotChecked=0, Total=6320 [2020-10-13 10:55:38,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-13 10:55:38,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 259. [2020-10-13 10:55:38,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-10-13 10:55:38,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 260 transitions. [2020-10-13 10:55:38,039 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 260 transitions. Word has length 254 [2020-10-13 10:55:38,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:55:38,039 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 260 transitions. [2020-10-13 10:55:38,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-10-13 10:55:38,039 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 260 transitions. [2020-10-13 10:55:38,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-13 10:55:38,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:55:38,041 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:55:38,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-13 10:55:38,041 INFO L427 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:55:38,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:55:38,042 INFO L82 PathProgramCache]: Analyzing trace with hash -794845396, now seen corresponding path program 48 times [2020-10-13 10:55:38,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:55:38,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583289179] [2020-10-13 10:55:38,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:55:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:38,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:41,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:41,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-13 10:55:41,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:41,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2923 [2020-10-13 10:55:41,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-13 10:55:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:55:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 299 [2020-10-13 10:55:41,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:55:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:55:43,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:55:43,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:55:43,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 10:55:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 10:55:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 10:55:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 10:55:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 10:55:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 10:55:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 10:55:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:55:43,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 10:55:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 10:55:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-13 10:55:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 10:55:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 10:55:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 10:55:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 10:55:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-13 10:55:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-13 10:55:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-13 10:55:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:43,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:43,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:43,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:43,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:43,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:43,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:43,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:43,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:43,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:43,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-13 10:55:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:43,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:44,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:44,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:44,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:44,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:44,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:44,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:44,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:44,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:44,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:44,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-13 10:55:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:44,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:44,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:44,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:44,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:44,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:55:44,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:44,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:44,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:44,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:44,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:44,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-13 10:55:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:44,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:44,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:44,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:44,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:44,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:44,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:44,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:44,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:44,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-13 10:55:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:44,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:44,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:44,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:44,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:44,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:44,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:44,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:44,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:44,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:44,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:44,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-13 10:55:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:44,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:44,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:44,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:44,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:44,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:44,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:44,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:44,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-13 10:55:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:44,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:44,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:44,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:44,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:44,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:44,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:44,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:44,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:44,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:44,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:44,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-13 10:55:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:44,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:44,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:44,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:44,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:44,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:44,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:44,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:44,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2929 backedges. 48 proven. 1777 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-10-13 10:55:44,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583289179] [2020-10-13 10:55:44,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:55:44,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2020-10-13 10:55:44,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600219301] [2020-10-13 10:55:44,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-10-13 10:55:44,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:55:44,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-10-13 10:55:44,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=3080, Unknown=0, NotChecked=0, Total=3192 [2020-10-13 10:55:44,139 INFO L87 Difference]: Start difference. First operand 259 states and 260 transitions. Second operand 57 states. [2020-10-13 10:55:51,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:55:51,361 INFO L93 Difference]: Finished difference Result 272 states and 273 transitions. [2020-10-13 10:55:51,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-13 10:55:51,362 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 256 [2020-10-13 10:55:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:55:51,364 INFO L225 Difference]: With dead ends: 272 [2020-10-13 10:55:51,364 INFO L226 Difference]: Without dead ends: 270 [2020-10-13 10:55:51,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=233, Invalid=7077, Unknown=0, NotChecked=0, Total=7310 [2020-10-13 10:55:51,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-13 10:55:51,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 267. [2020-10-13 10:55:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-10-13 10:55:51,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 268 transitions. [2020-10-13 10:55:51,386 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 268 transitions. Word has length 256 [2020-10-13 10:55:51,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:55:51,387 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 268 transitions. [2020-10-13 10:55:51,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-10-13 10:55:51,387 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 268 transitions. [2020-10-13 10:55:51,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-13 10:55:51,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:55:51,389 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:55:51,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-13 10:55:51,389 INFO L427 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:55:51,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:55:51,390 INFO L82 PathProgramCache]: Analyzing trace with hash -587963002, now seen corresponding path program 49 times [2020-10-13 10:55:51,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:55:51,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398669417] [2020-10-13 10:55:51,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:55:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:51,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:53,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:53,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-13 10:55:53,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:53,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2537 [2020-10-13 10:55:53,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:53,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-13 10:55:53,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:55:53,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 304 [2020-10-13 10:55:53,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:55:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:55:55,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:55:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:55:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 10:55:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 10:55:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 10:55:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 10:55:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-10-13 10:55:55,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 10:55:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 10:55:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 10:55:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 10:55:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 10:55:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-13 10:55:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 10:55:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 10:55:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 10:55:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 10:55:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-13 10:55:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-13 10:55:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-13 10:55:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-13 10:55:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-13 10:55:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-13 10:55:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-13 10:55:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-13 10:55:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-13 10:55:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-13 10:55:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-13 10:55:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:55,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:55:55,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:55:55,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:55:55,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:55:55,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:55:55,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:55:55,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:55:55,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:55:55,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:55:55,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:55:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3125 backedges. 1300 proven. 625 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2020-10-13 10:55:55,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398669417] [2020-10-13 10:55:55,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:55:55,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2020-10-13 10:55:55,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015878294] [2020-10-13 10:55:55,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 56 states [2020-10-13 10:55:55,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:55:55,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2020-10-13 10:55:55,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=759, Invalid=2321, Unknown=0, NotChecked=0, Total=3080 [2020-10-13 10:55:55,928 INFO L87 Difference]: Start difference. First operand 267 states and 268 transitions. Second operand 56 states. [2020-10-13 10:55:59,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:55:59,005 INFO L93 Difference]: Finished difference Result 382 states and 409 transitions. [2020-10-13 10:55:59,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-10-13 10:55:59,006 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 264 [2020-10-13 10:55:59,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:55:59,009 INFO L225 Difference]: With dead ends: 382 [2020-10-13 10:55:59,009 INFO L226 Difference]: Without dead ends: 270 [2020-10-13 10:55:59,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1569, Invalid=5237, Unknown=0, NotChecked=0, Total=6806 [2020-10-13 10:55:59,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-13 10:55:59,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 269. [2020-10-13 10:55:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-13 10:55:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 270 transitions. [2020-10-13 10:55:59,033 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 270 transitions. Word has length 264 [2020-10-13 10:55:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:55:59,034 INFO L479 AbstractCegarLoop]: Abstraction has 269 states and 270 transitions. [2020-10-13 10:55:59,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 56 states. [2020-10-13 10:55:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 270 transitions. [2020-10-13 10:55:59,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-13 10:55:59,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:55:59,036 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:55:59,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-13 10:55:59,037 INFO L427 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:55:59,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:55:59,037 INFO L82 PathProgramCache]: Analyzing trace with hash 172318724, now seen corresponding path program 50 times [2020-10-13 10:55:59,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:55:59,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481515236] [2020-10-13 10:55:59,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:55:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:55:59,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:02,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:02,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-13 10:56:02,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:02,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3169 [2020-10-13 10:56:02,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:02,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 57 [2020-10-13 10:56:02,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:56:02,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 311 [2020-10-13 10:56:02,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:56:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:56:06,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 10:56:06,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:56:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:56:06,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 10:56:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 10:56:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 10:56:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 10:56:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 10:56:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:56:06,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 10:56:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:56:06,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 10:56:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:56:06,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 10:56:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-13 10:56:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:56:06,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 10:56:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 10:56:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 10:56:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-13 10:56:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-13 10:56:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-13 10:56:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-13 10:56:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-13 10:56:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-13 10:56:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-13 10:56:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-13 10:56:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-13 10:56:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-13 10:56:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-13 10:56:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-13 10:56:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-10-13 10:56:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:56:06,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:56:06,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:56:06,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:56:06,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:56:06,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:56:06,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:56:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:56:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:56:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:56:06,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:56:06,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3176 backedges. 50 proven. 1926 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2020-10-13 10:56:06,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481515236] [2020-10-13 10:56:06,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:56:06,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2020-10-13 10:56:06,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105992132] [2020-10-13 10:56:06,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-10-13 10:56:06,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:56:06,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-10-13 10:56:06,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=3307, Unknown=0, NotChecked=0, Total=3422 [2020-10-13 10:56:06,387 INFO L87 Difference]: Start difference. First operand 269 states and 270 transitions. Second operand 59 states.