/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:21:49,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:21:49,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:21:49,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:21:49,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:21:49,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:21:49,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:21:49,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:21:49,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:21:49,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:21:49,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:21:49,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:21:49,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:21:49,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:21:49,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:21:49,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:21:49,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:21:49,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:21:49,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:21:49,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:21:49,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:21:49,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:21:49,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:21:49,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:21:49,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:21:49,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:21:49,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:21:49,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:21:49,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:21:49,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:21:49,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:21:49,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:21:49,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:21:49,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:21:49,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:21:49,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:21:49,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:21:49,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:21:49,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:21:49,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:21:49,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:21:49,177 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 [2020-10-12 13:21:49,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:21:49,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:21:49,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:21:49,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:21:49,222 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:21:49,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:21:49,222 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:21:49,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:21:49,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:21:49,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:21:49,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:21:49,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:21:49,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:21:49,225 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:21:49,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:21:49,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:21:49,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:21:49,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:21:49,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:21:49,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:21:49,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:21:49,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:21:49,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:21:49,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:21:49,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:21:49,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:21:49,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:21:49,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:21:49,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:21:49,228 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 13:21:49,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:21:49,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:21:49,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:21:49,529 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:21:49,529 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:21:49,530 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label19.c [2020-10-12 13:21:49,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87d0cf681/e8e06c880ca2485daa66cce76a513319/FLAGfc305389f [2020-10-12 13:21:50,350 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:21:50,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem12_label19.c [2020-10-12 13:21:50,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87d0cf681/e8e06c880ca2485daa66cce76a513319/FLAGfc305389f [2020-10-12 13:21:50,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87d0cf681/e8e06c880ca2485daa66cce76a513319 [2020-10-12 13:21:50,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:21:50,916 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:21:50,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:21:50,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:21:50,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:21:50,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:21:50" (1/1) ... [2020-10-12 13:21:50,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25814f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:21:50, skipping insertion in model container [2020-10-12 13:21:50,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:21:50" (1/1) ... [2020-10-12 13:21:50,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:21:51,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:21:52,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:21:52,736 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:21:53,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:21:53,502 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:21:53,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:21:53 WrapperNode [2020-10-12 13:21:53,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:21:53,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:21:53,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:21:53,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:21:53,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:21:53" (1/1) ... [2020-10-12 13:21:53,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:21:53" (1/1) ... [2020-10-12 13:21:53,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:21:53" (1/1) ... [2020-10-12 13:21:53,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:21:53" (1/1) ... [2020-10-12 13:21:53,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:21:53" (1/1) ... [2020-10-12 13:21:53,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:21:53" (1/1) ... [2020-10-12 13:21:53,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:21:53" (1/1) ... [2020-10-12 13:21:53,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:21:53,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:21:53,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:21:53,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:21:53,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:21:53" (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 [2020-10-12 13:21:53,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:21:53,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:21:53,868 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:21:53,868 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 13:21:53,868 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 13:21:53,869 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-12 13:21:53,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:21:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:21:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 13:21:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 13:21:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-12 13:21:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:21:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:21:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:21:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:21:53,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:21:53,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 13:21:58,601 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 13:21:58,603 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 13:21:58,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:21:58 BoogieIcfgContainer [2020-10-12 13:21:58,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 13:21:58,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 13:21:58,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 13:21:58,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 13:21:58,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:21:50" (1/3) ... [2020-10-12 13:21:58,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d264c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:21:58, skipping insertion in model container [2020-10-12 13:21:58,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:21:53" (2/3) ... [2020-10-12 13:21:58,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d264c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:21:58, skipping insertion in model container [2020-10-12 13:21:58,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:21:58" (3/3) ... [2020-10-12 13:21:58,628 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem12_label19.c [2020-10-12 13:21:58,637 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 13:21:58,648 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 13:21:58,662 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 13:21:58,692 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 13:21:58,693 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 13:21:58,693 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 13:21:58,693 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 13:21:58,693 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 13:21:58,693 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 13:21:58,693 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 13:21:58,694 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 13:21:58,737 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states. [2020-10-12 13:21:58,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-12 13:21:58,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:21:58,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:21:58,745 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:21:58,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:21:58,751 INFO L82 PathProgramCache]: Analyzing trace with hash 219537197, now seen corresponding path program 1 times [2020-10-12 13:21:58,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:21:58,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295477748] [2020-10-12 13:21:58,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:21:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:21:58,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:21:59,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:21:59,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 13:21:59,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:21:59,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-12 13:21:59,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:21:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:21:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:21:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 13:21:59,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:21:59,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:21:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:21:59,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:21:59,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:21:59,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:21:59,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:21:59,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:21:59,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:21:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:21:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:21:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:21:59,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:21:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:21:59,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295477748] [2020-10-12 13:21:59,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:21:59,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 13:21:59,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655194543] [2020-10-12 13:21:59,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 13:21:59,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:21:59,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 13:21:59,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 13:21:59,343 INFO L87 Difference]: Start difference. First operand 839 states. Second operand 4 states. [2020-10-12 13:22:07,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:22:07,904 INFO L93 Difference]: Finished difference Result 2471 states and 4735 transitions. [2020-10-12 13:22:07,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:22:07,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-12 13:22:07,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:22:07,933 INFO L225 Difference]: With dead ends: 2471 [2020-10-12 13:22:07,934 INFO L226 Difference]: Without dead ends: 1568 [2020-10-12 13:22:07,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:22:07,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2020-10-12 13:22:08,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1555. [2020-10-12 13:22:08,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1555 states. [2020-10-12 13:22:08,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2403 transitions. [2020-10-12 13:22:08,093 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2403 transitions. Word has length 20 [2020-10-12 13:22:08,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:22:08,094 INFO L479 AbstractCegarLoop]: Abstraction has 1555 states and 2403 transitions. [2020-10-12 13:22:08,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 13:22:08,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2403 transitions. [2020-10-12 13:22:08,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-12 13:22:08,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:22:08,099 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:22:08,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 13:22:08,099 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:22:08,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:22:08,100 INFO L82 PathProgramCache]: Analyzing trace with hash -245910091, now seen corresponding path program 1 times [2020-10-12 13:22:08,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:22:08,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105856781] [2020-10-12 13:22:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:22:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:08,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:08,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:09,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:09,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 13:22:09,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:22:09,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 971 [2020-10-12 13:22:09,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:22:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:22:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-12 13:22:09,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:22:09,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:22:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:09,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:09,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:09,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:22:09,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:22:09,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:22:09,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:09,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:22:09,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:22:09,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:22:09,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:22:09,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:22:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:09,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:09,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:09,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 13:22:09,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:22:09,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-12 13:22:09,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:09,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:22:09,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:22:09,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 13:22:09,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-12 13:22:09,544 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 13:22:09,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105856781] [2020-10-12 13:22:09,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:22:09,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:22:09,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737345280] [2020-10-12 13:22:09,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:22:09,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:22:09,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:22:09,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:22:09,549 INFO L87 Difference]: Start difference. First operand 1555 states and 2403 transitions. Second operand 6 states. [2020-10-12 13:22:20,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:22:20,095 INFO L93 Difference]: Finished difference Result 4719 states and 7347 transitions. [2020-10-12 13:22:20,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:22:20,096 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2020-10-12 13:22:20,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:22:20,115 INFO L225 Difference]: With dead ends: 4719 [2020-10-12 13:22:20,115 INFO L226 Difference]: Without dead ends: 3170 [2020-10-12 13:22:20,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:22:20,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3170 states. [2020-10-12 13:22:20,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3170 to 3149. [2020-10-12 13:22:20,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3149 states. [2020-10-12 13:22:20,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3149 states to 3149 states and 4313 transitions. [2020-10-12 13:22:20,214 INFO L78 Accepts]: Start accepts. Automaton has 3149 states and 4313 transitions. Word has length 95 [2020-10-12 13:22:20,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:22:20,214 INFO L479 AbstractCegarLoop]: Abstraction has 3149 states and 4313 transitions. [2020-10-12 13:22:20,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:22:20,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3149 states and 4313 transitions. [2020-10-12 13:22:20,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-12 13:22:20,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:22:20,217 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:22:20,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 13:22:20,218 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:22:20,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:22:20,218 INFO L82 PathProgramCache]: Analyzing trace with hash -55923639, now seen corresponding path program 1 times [2020-10-12 13:22:20,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:22:20,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567097744] [2020-10-12 13:22:20,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:22:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:20,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:20,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:21,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:21,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:22:21,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:22:21,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 786 [2020-10-12 13:22:21,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:21,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:22:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:22:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 13:22:21,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:22:21,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:22:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:21,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:21,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:21,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:22:21,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:22:21,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 13:22:21,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:22:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:22:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:22:21,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:22:21,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:22:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:21,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:21,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:21,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:22:21,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:22:21,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-12 13:22:21,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:22:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:22:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 13:22:21,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:22:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:22:21,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567097744] [2020-10-12 13:22:21,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:22:21,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:22:21,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327586401] [2020-10-12 13:22:21,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:22:21,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:22:21,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:22:21,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:22:21,381 INFO L87 Difference]: Start difference. First operand 3149 states and 4313 transitions. Second operand 7 states. [2020-10-12 13:22:33,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:22:33,663 INFO L93 Difference]: Finished difference Result 9677 states and 13498 transitions. [2020-10-12 13:22:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:22:33,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 101 [2020-10-12 13:22:33,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:22:33,735 INFO L225 Difference]: With dead ends: 9677 [2020-10-12 13:22:33,736 INFO L226 Difference]: Without dead ends: 6534 [2020-10-12 13:22:33,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:22:33,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6534 states. [2020-10-12 13:22:33,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6534 to 6484. [2020-10-12 13:22:33,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6484 states. [2020-10-12 13:22:33,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6484 states to 6484 states and 8648 transitions. [2020-10-12 13:22:33,931 INFO L78 Accepts]: Start accepts. Automaton has 6484 states and 8648 transitions. Word has length 101 [2020-10-12 13:22:33,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:22:33,932 INFO L479 AbstractCegarLoop]: Abstraction has 6484 states and 8648 transitions. [2020-10-12 13:22:33,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:22:33,933 INFO L276 IsEmpty]: Start isEmpty. Operand 6484 states and 8648 transitions. [2020-10-12 13:22:33,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 13:22:33,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:22:33,942 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:22:33,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 13:22:33,943 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:22:33,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:22:33,945 INFO L82 PathProgramCache]: Analyzing trace with hash 818437633, now seen corresponding path program 1 times [2020-10-12 13:22:33,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:22:33,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946831861] [2020-10-12 13:22:33,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:22:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:34,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:34,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:34,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:34,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-12 13:22:34,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:22:34,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-10-12 13:22:34,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:34,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:22:34,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:22:34,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 13:22:34,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:22:34,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:22:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:34,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:34,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:34,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:22:34,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:22:34,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 13:22:34,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:34,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:22:34,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:22:34,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:22:34,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:22:34,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:22:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:34,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:34,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:34,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-12 13:22:34,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:22:34,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-12 13:22:34,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:22:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:22:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 13:22:34,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:22:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:22:34,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946831861] [2020-10-12 13:22:34,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:22:34,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:22:34,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952237575] [2020-10-12 13:22:34,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:22:34,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:22:34,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:22:34,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:22:34,896 INFO L87 Difference]: Start difference. First operand 6484 states and 8648 transitions. Second operand 7 states. [2020-10-12 13:22:47,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:22:47,351 INFO L93 Difference]: Finished difference Result 19840 states and 26999 transitions. [2020-10-12 13:22:47,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:22:47,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-12 13:22:47,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:22:47,419 INFO L225 Difference]: With dead ends: 19840 [2020-10-12 13:22:47,419 INFO L226 Difference]: Without dead ends: 13362 [2020-10-12 13:22:47,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:22:47,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13362 states. [2020-10-12 13:22:47,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13362 to 13122. [2020-10-12 13:22:47,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13122 states. [2020-10-12 13:22:47,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13122 states to 13122 states and 16598 transitions. [2020-10-12 13:22:47,909 INFO L78 Accepts]: Start accepts. Automaton has 13122 states and 16598 transitions. Word has length 105 [2020-10-12 13:22:47,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:22:47,911 INFO L479 AbstractCegarLoop]: Abstraction has 13122 states and 16598 transitions. [2020-10-12 13:22:47,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:22:47,911 INFO L276 IsEmpty]: Start isEmpty. Operand 13122 states and 16598 transitions. [2020-10-12 13:22:47,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-12 13:22:47,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:22:47,919 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:22:47,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 13:22:47,919 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:22:47,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:22:47,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1178709280, now seen corresponding path program 1 times [2020-10-12 13:22:47,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:22:47,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519426246] [2020-10-12 13:22:47,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:22:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:48,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:48,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:48,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:49,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:49,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:49,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-12 13:22:49,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:22:49,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1891 [2020-10-12 13:22:49,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:49,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:22:49,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-12 13:22:49,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-12 13:22:49,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:22:49,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:22:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:49,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:49,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:49,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:22:49,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:22:49,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 13:22:49,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:49,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:22:49,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:22:49,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:22:49,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:22:49,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:22:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:50,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:50,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:50,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 13:22:50,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:22:50,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 13:22:50,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:22:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:22:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 13:22:50,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:22:50,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 13:22:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:22:50,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:50,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:22:50,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:22:50,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 13:22:50,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:22:50,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-12 13:22:50,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:22:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:22:50,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:22:50,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-12 13:22:50,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 13:22:50,433 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 83 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 13:22:50,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519426246] [2020-10-12 13:22:50,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:22:50,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:22:50,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281605250] [2020-10-12 13:22:50,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:22:50,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:22:50,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:22:50,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:22:50,437 INFO L87 Difference]: Start difference. First operand 13122 states and 16598 transitions. Second operand 6 states. [2020-10-12 13:23:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:23:01,899 INFO L93 Difference]: Finished difference Result 31336 states and 41598 transitions. [2020-10-12 13:23:01,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:23:01,900 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2020-10-12 13:23:01,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:23:01,979 INFO L225 Difference]: With dead ends: 31336 [2020-10-12 13:23:01,979 INFO L226 Difference]: Without dead ends: 18987 [2020-10-12 13:23:02,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:23:02,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18987 states. [2020-10-12 13:23:02,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18987 to 18826. [2020-10-12 13:23:02,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18826 states. [2020-10-12 13:23:02,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18826 states to 18826 states and 24231 transitions. [2020-10-12 13:23:02,436 INFO L78 Accepts]: Start accepts. Automaton has 18826 states and 24231 transitions. Word has length 203 [2020-10-12 13:23:02,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:23:02,437 INFO L479 AbstractCegarLoop]: Abstraction has 18826 states and 24231 transitions. [2020-10-12 13:23:02,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:23:02,437 INFO L276 IsEmpty]: Start isEmpty. Operand 18826 states and 24231 transitions. [2020-10-12 13:23:02,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-12 13:23:02,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:23:02,441 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:23:02,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 13:23:02,442 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:23:02,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:23:02,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1907433536, now seen corresponding path program 1 times [2020-10-12 13:23:02,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:23:02,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106886744] [2020-10-12 13:23:02,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:23:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:02,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:02,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:02,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:04,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:04,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-12 13:23:04,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:23:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2327 [2020-10-12 13:23:04,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:23:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-12 13:23:04,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 13:23:04,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:04,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:23:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:04,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:04,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:04,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:23:04,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:23:04,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:23:04,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:23:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:23:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:23:04,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:04,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:23:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:04,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:05,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:05,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 13:23:05,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:23:05,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 13:23:05,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:23:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:23:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 13:23:05,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:05,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 13:23:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:05,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:05,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:05,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:05,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 13:23:05,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:23:05,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-12 13:23:05,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:05,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:23:05,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:23:05,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-12 13:23:05,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:05,749 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 98 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 13:23:05,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106886744] [2020-10-12 13:23:05,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:23:05,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:23:05,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852421620] [2020-10-12 13:23:05,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:23:05,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:23:05,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:23:05,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:23:05,751 INFO L87 Difference]: Start difference. First operand 18826 states and 24231 transitions. Second operand 6 states. [2020-10-12 13:23:15,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:23:15,072 INFO L93 Difference]: Finished difference Result 37176 states and 48260 transitions. [2020-10-12 13:23:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:23:15,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2020-10-12 13:23:15,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:23:15,143 INFO L225 Difference]: With dead ends: 37176 [2020-10-12 13:23:15,143 INFO L226 Difference]: Without dead ends: 18812 [2020-10-12 13:23:15,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 13:23:15,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18812 states. [2020-10-12 13:23:15,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18812 to 18745. [2020-10-12 13:23:15,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18745 states. [2020-10-12 13:23:15,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18745 states to 18745 states and 23228 transitions. [2020-10-12 13:23:15,590 INFO L78 Accepts]: Start accepts. Automaton has 18745 states and 23228 transitions. Word has length 219 [2020-10-12 13:23:15,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:23:15,590 INFO L479 AbstractCegarLoop]: Abstraction has 18745 states and 23228 transitions. [2020-10-12 13:23:15,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:23:15,591 INFO L276 IsEmpty]: Start isEmpty. Operand 18745 states and 23228 transitions. [2020-10-12 13:23:15,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-12 13:23:15,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:23:15,595 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:23:15,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 13:23:15,596 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:23:15,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:23:15,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1581880968, now seen corresponding path program 1 times [2020-10-12 13:23:15,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:23:15,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34141558] [2020-10-12 13:23:15,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:23:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:15,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:15,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:16,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:16,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:16,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-12 13:23:16,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:23:16,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1142 [2020-10-12 13:23:16,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:16,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:23:16,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-12 13:23:16,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 13:23:16,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:23:16,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:23:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:16,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:16,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:16,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:23:16,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:23:16,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:23:16,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:16,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:23:16,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:23:16,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:23:16,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:23:16,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:23:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:17,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:17,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:17,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-12 13:23:17,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:23:17,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-12 13:23:17,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:17,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:23:17,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:23:17,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-12 13:23:17,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:17,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-12 13:23:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:17,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:17,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:17,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 13:23:17,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:23:17,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 13:23:17,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:17,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:23:17,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:23:17,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 13:23:17,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:17,383 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 98 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 13:23:17,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34141558] [2020-10-12 13:23:17,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:23:17,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:23:17,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935942653] [2020-10-12 13:23:17,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:23:17,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:23:17,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:23:17,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:23:17,386 INFO L87 Difference]: Start difference. First operand 18745 states and 23228 transitions. Second operand 6 states. [2020-10-12 13:23:28,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:23:28,238 INFO L93 Difference]: Finished difference Result 46825 states and 60768 transitions. [2020-10-12 13:23:28,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:23:28,240 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 255 [2020-10-12 13:23:28,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:23:28,319 INFO L225 Difference]: With dead ends: 46825 [2020-10-12 13:23:28,319 INFO L226 Difference]: Without dead ends: 28853 [2020-10-12 13:23:28,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:23:28,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28853 states. [2020-10-12 13:23:29,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28853 to 28741. [2020-10-12 13:23:29,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28741 states. [2020-10-12 13:23:29,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28741 states to 28741 states and 36293 transitions. [2020-10-12 13:23:29,099 INFO L78 Accepts]: Start accepts. Automaton has 28741 states and 36293 transitions. Word has length 255 [2020-10-12 13:23:29,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:23:29,100 INFO L479 AbstractCegarLoop]: Abstraction has 28741 states and 36293 transitions. [2020-10-12 13:23:29,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:23:29,100 INFO L276 IsEmpty]: Start isEmpty. Operand 28741 states and 36293 transitions. [2020-10-12 13:23:29,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-12 13:23:29,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:23:29,106 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:23:29,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 13:23:29,106 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:23:29,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:23:29,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1170810160, now seen corresponding path program 1 times [2020-10-12 13:23:29,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:23:29,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496162182] [2020-10-12 13:23:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:23:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:29,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:29,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:30,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:30,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:30,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-12 13:23:30,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:23:30,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1273 [2020-10-12 13:23:30,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:30,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:23:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-10-12 13:23:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 13:23:30,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:30,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:23:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:30,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:30,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:30,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:23:30,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:23:30,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:23:30,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:30,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:23:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:23:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:23:30,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:23:30,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:23:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:30,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:30,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:30,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 13:23:30,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:23:30,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-12 13:23:30,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:30,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:23:30,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:23:30,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-12 13:23:30,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:30,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-12 13:23:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:30,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:30,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:30,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:30,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 13:23:30,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:23:30,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-12 13:23:30,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:30,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:23:30,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:23:30,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 13:23:30,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:31,114 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 98 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 13:23:31,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [496162182] [2020-10-12 13:23:31,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:23:31,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:23:31,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38996387] [2020-10-12 13:23:31,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:23:31,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:23:31,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:23:31,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:23:31,117 INFO L87 Difference]: Start difference. First operand 28741 states and 36293 transitions. Second operand 6 states. [2020-10-12 13:23:43,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:23:43,251 INFO L93 Difference]: Finished difference Result 65214 states and 88396 transitions. [2020-10-12 13:23:43,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:23:43,252 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 259 [2020-10-12 13:23:43,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:23:43,368 INFO L225 Difference]: With dead ends: 65214 [2020-10-12 13:23:43,369 INFO L226 Difference]: Without dead ends: 37246 [2020-10-12 13:23:43,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:23:43,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37246 states. [2020-10-12 13:23:44,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37246 to 36238. [2020-10-12 13:23:44,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36238 states. [2020-10-12 13:23:44,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36238 states to 36238 states and 46317 transitions. [2020-10-12 13:23:44,139 INFO L78 Accepts]: Start accepts. Automaton has 36238 states and 46317 transitions. Word has length 259 [2020-10-12 13:23:44,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:23:44,140 INFO L479 AbstractCegarLoop]: Abstraction has 36238 states and 46317 transitions. [2020-10-12 13:23:44,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:23:44,140 INFO L276 IsEmpty]: Start isEmpty. Operand 36238 states and 46317 transitions. [2020-10-12 13:23:44,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-12 13:23:44,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:23:44,145 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:23:44,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 13:23:44,146 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:23:44,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:23:44,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1439319662, now seen corresponding path program 1 times [2020-10-12 13:23:44,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:23:44,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465768101] [2020-10-12 13:23:44,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:23:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:44,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:44,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:45,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:47,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:47,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-12 13:23:47,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:23:47,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3667 [2020-10-12 13:23:47,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:47,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:23:47,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:23:47,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 13:23:47,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:47,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:23:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:47,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:47,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:47,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:23:47,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:23:47,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 13:23:47,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:23:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:23:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:23:47,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:48,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:23:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:48,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:48,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:48,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-12 13:23:48,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:23:48,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-12 13:23:48,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:23:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:23:48,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 13:23:48,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:48,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-12 13:23:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:23:48,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:23:48,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:23:48,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 13:23:48,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:23:48,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 13:23:48,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:23:48,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:23:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-12 13:23:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:23:48,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:23:49,072 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 26 proven. 90 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 13:23:49,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465768101] [2020-10-12 13:23:49,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:23:49,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:23:49,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788339155] [2020-10-12 13:23:49,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:23:49,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:23:49,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:23:49,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:23:49,083 INFO L87 Difference]: Start difference. First operand 36238 states and 46317 transitions. Second operand 7 states. [2020-10-12 13:24:01,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:24:01,375 INFO L93 Difference]: Finished difference Result 75348 states and 97066 transitions. [2020-10-12 13:24:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:24:01,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 263 [2020-10-12 13:24:01,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:24:01,496 INFO L225 Difference]: With dead ends: 75348 [2020-10-12 13:24:01,496 INFO L226 Difference]: Without dead ends: 39883 [2020-10-12 13:24:01,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:24:01,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39883 states. [2020-10-12 13:24:02,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39883 to 39613. [2020-10-12 13:24:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39613 states. [2020-10-12 13:24:02,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39613 states to 39613 states and 50495 transitions. [2020-10-12 13:24:02,220 INFO L78 Accepts]: Start accepts. Automaton has 39613 states and 50495 transitions. Word has length 263 [2020-10-12 13:24:02,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:24:02,221 INFO L479 AbstractCegarLoop]: Abstraction has 39613 states and 50495 transitions. [2020-10-12 13:24:02,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:24:02,221 INFO L276 IsEmpty]: Start isEmpty. Operand 39613 states and 50495 transitions. [2020-10-12 13:24:02,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-12 13:24:02,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:24:02,224 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:24:02,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 13:24:02,225 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:24:02,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:24:02,225 INFO L82 PathProgramCache]: Analyzing trace with hash 488004005, now seen corresponding path program 1 times [2020-10-12 13:24:02,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:24:02,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682601255] [2020-10-12 13:24:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:24:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:02,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:02,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:02,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-12 13:24:02,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:24:02,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-10-12 13:24:02,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:02,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:24:02,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 282 [2020-10-12 13:24:02,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 13:24:02,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:02,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:24:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:02,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:02,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:02,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:24:02,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:24:02,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:24:02,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:24:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:24:02,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:24:02,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:02,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:24:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:02,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:02,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:02,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 13:24:02,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:24:02,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 13:24:02,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:24:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:24:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:24:02,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:03,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-12 13:24:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:03,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:03,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:03,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-12 13:24:03,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:24:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 13:24:03,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:24:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:24:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 13:24:03,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-12 13:24:03,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682601255] [2020-10-12 13:24:03,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:24:03,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:24:03,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151758736] [2020-10-12 13:24:03,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:24:03,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:24:03,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:24:03,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:24:03,690 INFO L87 Difference]: Start difference. First operand 39613 states and 50495 transitions. Second operand 6 states. [2020-10-12 13:24:22,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:24:22,254 INFO L93 Difference]: Finished difference Result 136358 states and 185877 transitions. [2020-10-12 13:24:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:24:22,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 290 [2020-10-12 13:24:22,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:24:22,560 INFO L225 Difference]: With dead ends: 136358 [2020-10-12 13:24:22,561 INFO L226 Difference]: Without dead ends: 97518 [2020-10-12 13:24:22,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:24:22,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97518 states. [2020-10-12 13:24:26,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97518 to 95930. [2020-10-12 13:24:26,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95930 states. [2020-10-12 13:24:26,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95930 states to 95930 states and 123665 transitions. [2020-10-12 13:24:26,805 INFO L78 Accepts]: Start accepts. Automaton has 95930 states and 123665 transitions. Word has length 290 [2020-10-12 13:24:26,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:24:26,806 INFO L479 AbstractCegarLoop]: Abstraction has 95930 states and 123665 transitions. [2020-10-12 13:24:26,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:24:26,806 INFO L276 IsEmpty]: Start isEmpty. Operand 95930 states and 123665 transitions. [2020-10-12 13:24:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-10-12 13:24:26,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:24:26,815 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:24:26,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 13:24:26,815 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:24:26,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:24:26,816 INFO L82 PathProgramCache]: Analyzing trace with hash 501116072, now seen corresponding path program 1 times [2020-10-12 13:24:26,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:24:26,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717369344] [2020-10-12 13:24:26,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:24:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:26,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:27,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:27,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:29,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:29,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-10-12 13:24:29,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:24:29,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2616 [2020-10-12 13:24:29,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:29,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:24:29,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-12 13:24:29,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 13:24:29,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:30,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:24:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:30,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:30,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:30,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:24:30,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:24:30,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:24:30,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:24:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:24:30,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:24:30,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:30,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:24:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:30,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:30,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:30,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-12 13:24:30,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:24:30,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 13:24:30,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:30,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:24:30,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:24:30,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-12 13:24:30,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:24:30,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-12 13:24:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:30,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:30,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:30,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:30,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 13:24:30,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:24:30,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-12 13:24:30,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:30,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:24:30,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:24:30,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 13:24:30,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:24:30,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-12 13:24:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:30,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:31,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:31,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 13:24:31,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:24:31,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-12 13:24:31,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:31,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:24:31,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:24:31,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-12 13:24:31,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:31,340 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 246 proven. 6 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-12 13:24:31,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717369344] [2020-10-12 13:24:31,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:24:31,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:24:31,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384036610] [2020-10-12 13:24:31,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:24:31,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:24:31,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:24:31,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:24:31,343 INFO L87 Difference]: Start difference. First operand 95930 states and 123665 transitions. Second operand 8 states. [2020-10-12 13:24:53,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:24:53,259 INFO L93 Difference]: Finished difference Result 203145 states and 265715 transitions. [2020-10-12 13:24:53,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:24:53,264 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 378 [2020-10-12 13:24:53,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:24:53,598 INFO L225 Difference]: With dead ends: 203145 [2020-10-12 13:24:53,599 INFO L226 Difference]: Without dead ends: 107988 [2020-10-12 13:24:53,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:24:53,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107988 states. [2020-10-12 13:24:56,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107988 to 107876. [2020-10-12 13:24:56,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107876 states. [2020-10-12 13:24:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107876 states to 107876 states and 137815 transitions. [2020-10-12 13:24:56,396 INFO L78 Accepts]: Start accepts. Automaton has 107876 states and 137815 transitions. Word has length 378 [2020-10-12 13:24:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:24:56,396 INFO L479 AbstractCegarLoop]: Abstraction has 107876 states and 137815 transitions. [2020-10-12 13:24:56,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:24:56,397 INFO L276 IsEmpty]: Start isEmpty. Operand 107876 states and 137815 transitions. [2020-10-12 13:24:56,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2020-10-12 13:24:56,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:24:56,403 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:24:56,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 13:24:56,403 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:24:56,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:24:56,404 INFO L82 PathProgramCache]: Analyzing trace with hash -897908308, now seen corresponding path program 1 times [2020-10-12 13:24:56,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:24:56,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295288224] [2020-10-12 13:24:56,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:24:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:56,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:56,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:58,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:58,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 406 [2020-10-12 13:24:58,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:24:58,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1676 [2020-10-12 13:24:58,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:24:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 386 [2020-10-12 13:24:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 13:24:58,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:58,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:24:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:58,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:58,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:58,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:24:58,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:24:58,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:24:58,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:24:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:24:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:24:58,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:58,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:24:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:58,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:58,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:58,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-12 13:24:58,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:24:58,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 13:24:58,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:24:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:24:58,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:24:58,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:58,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-12 13:24:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:58,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:58,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:58,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-12 13:24:58,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:24:58,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:24:58,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:58,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:24:58,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:24:58,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:24:58,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:58,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-10-12 13:24:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:24:58,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:24:58,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:24:58,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 13:24:58,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:24:58,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 13:24:58,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:24:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:24:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:24:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 13:24:58,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:24:58,712 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2020-10-12 13:24:58,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295288224] [2020-10-12 13:24:58,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:24:58,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:24:58,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179141917] [2020-10-12 13:24:58,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:24:58,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:24:58,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:24:58,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:24:58,715 INFO L87 Difference]: Start difference. First operand 107876 states and 137815 transitions. Second operand 5 states. [2020-10-12 13:25:18,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:25:18,500 INFO L93 Difference]: Finished difference Result 262871 states and 347563 transitions. [2020-10-12 13:25:18,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:25:18,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 392 [2020-10-12 13:25:18,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:25:19,509 INFO L225 Difference]: With dead ends: 262871 [2020-10-12 13:25:19,510 INFO L226 Difference]: Without dead ends: 155768 [2020-10-12 13:25:19,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:25:19,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155768 states. [2020-10-12 13:25:21,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155768 to 154208. [2020-10-12 13:25:21,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154208 states. [2020-10-12 13:25:21,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154208 states to 154208 states and 194410 transitions. [2020-10-12 13:25:21,825 INFO L78 Accepts]: Start accepts. Automaton has 154208 states and 194410 transitions. Word has length 392 [2020-10-12 13:25:21,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:25:21,826 INFO L479 AbstractCegarLoop]: Abstraction has 154208 states and 194410 transitions. [2020-10-12 13:25:21,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:25:21,826 INFO L276 IsEmpty]: Start isEmpty. Operand 154208 states and 194410 transitions. [2020-10-12 13:25:21,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2020-10-12 13:25:21,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:25:21,845 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:25:21,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 13:25:21,847 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:25:21,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:25:21,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1088254360, now seen corresponding path program 1 times [2020-10-12 13:25:21,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:25:21,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686510536] [2020-10-12 13:25:21,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:25:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:25:22,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:22,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:22,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:25,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:25,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:26,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:25:26,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 513 [2020-10-12 13:25:26,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:25:26,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-12 13:25:26,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:25:26,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 13:25:26,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:25:26,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 349 [2020-10-12 13:25:27,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:25:27,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:25:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:25:27,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:27,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:25:27,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:25:27,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:25:27,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 13:25:27,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:25:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:25:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:25:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:25:27,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:25:27,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:25:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:25:27,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:27,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:27,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:25:27,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 13:25:27,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:25:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-12 13:25:27,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:25:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:25:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:25:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-12 13:25:27,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:25:27,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-12 13:25:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:25:27,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:27,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:27,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:25:27,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:25:27,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:25:27,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-12 13:25:27,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:25:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:25:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:25:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 13:25:27,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:25:27,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2020-10-12 13:25:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:25:27,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:27,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:25:27,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:25:27,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:25:27,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 13:25:27,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:25:27,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:25:27,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:25:27,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:25:27,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:25:27,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2020-10-12 13:25:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:25:27,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:25:27,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:25:27,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-12 13:25:27,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:25:27,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 13:25:27,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:25:27,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:25:27,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-12 13:25:27,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:25:27,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0