/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/Problem14_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:59:56,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:59:56,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:59:56,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:59:56,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:59:56,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:59:56,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:59:56,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:59:56,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:59:56,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:59:56,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:59:56,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:59:56,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:59:56,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:59:56,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:59:56,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:59:56,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:59:56,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:59:56,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:59:56,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:59:56,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:59:56,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:59:56,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:59:56,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:59:56,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:59:56,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:59:56,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:59:56,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:59:56,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:59:56,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:59:56,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:59:56,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:59:56,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:59:56,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:59:56,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:59:56,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:59:56,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:59:56,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:59:56,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:59:56,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:59:56,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:59:56,870 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 13:59:56,906 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:59:56,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:59:56,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:59:56,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:59:56,908 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:59:56,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:59:56,909 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:59:56,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:59:56,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:59:56,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:59:56,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:59:56,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:59:56,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:59:56,912 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:59:56,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:59:56,912 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:59:56,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:59:56,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:59:56,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:59:56,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:59:56,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:59:56,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:59:56,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:59:56,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:59:56,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:59:56,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:59:56,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:59:56,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:59:56,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:59:56,915 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 13:59:57,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:59:57,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:59:57,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:59:57,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:59:57,274 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:59:57,275 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-10-12 13:59:57,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a09305d91/6cf9b418e8314138bbd7697146fd9dd1/FLAG3a8147458 [2020-10-12 13:59:57,909 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:59:57,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-10-12 13:59:57,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a09305d91/6cf9b418e8314138bbd7697146fd9dd1/FLAG3a8147458 [2020-10-12 13:59:58,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a09305d91/6cf9b418e8314138bbd7697146fd9dd1 [2020-10-12 13:59:58,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:59:58,149 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:59:58,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:59:58,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:59:58,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:59:58,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:59:58" (1/1) ... [2020-10-12 13:59:58,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40dc6253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:58, skipping insertion in model container [2020-10-12 13:59:58,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:59:58" (1/1) ... [2020-10-12 13:59:58,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:59:58,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:59:58,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:59:58,806 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:59:59,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:59:59,054 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:59:59,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:59 WrapperNode [2020-10-12 13:59:59,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:59:59,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:59:59,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:59:59,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:59:59,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:59" (1/1) ... [2020-10-12 13:59:59,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:59" (1/1) ... [2020-10-12 13:59:59,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:59" (1/1) ... [2020-10-12 13:59:59,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:59" (1/1) ... [2020-10-12 13:59:59,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:59" (1/1) ... [2020-10-12 13:59:59,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:59" (1/1) ... [2020-10-12 13:59:59,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:59" (1/1) ... [2020-10-12 13:59:59,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:59:59,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:59:59,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:59:59,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:59:59,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:59" (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 13:59:59,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:59:59,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:59:59,291 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:59:59,292 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:59:59,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:59:59,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:59:59,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:59:59,292 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:59:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:59:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:59:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:00:00,775 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:00:00,776 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:00:00,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:00:00 BoogieIcfgContainer [2020-10-12 14:00:00,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:00:00,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:00:00,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:00:00,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:00:00,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:59:58" (1/3) ... [2020-10-12 14:00:00,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f62f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:00:00, skipping insertion in model container [2020-10-12 14:00:00,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:59:59" (2/3) ... [2020-10-12 14:00:00,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f62f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:00:00, skipping insertion in model container [2020-10-12 14:00:00,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:00:00" (3/3) ... [2020-10-12 14:00:00,792 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2020-10-12 14:00:00,804 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:00:00,814 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:00:00,830 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:00:00,857 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:00:00,857 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:00:00,858 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:00:00,858 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:00:00,858 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:00:00,858 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:00:00,858 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:00:00,858 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:00:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 14:00:00,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 14:00:00,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:00,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:00,895 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:00,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:00,902 INFO L82 PathProgramCache]: Analyzing trace with hash 406410443, now seen corresponding path program 1 times [2020-10-12 14:00:00,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:00,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533226085] [2020-10-12 14:00:00,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:01,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:01,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:01,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 14:00:01,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:01,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-12 14:00:01,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 14:00:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 14:00:01,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:01,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:01,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:01,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:01,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:01,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:00:01,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:01,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:01,655 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 14:00:01,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533226085] [2020-10-12 14:00:01,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:01,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:00:01,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035850790] [2020-10-12 14:00:01,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:00:01,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:01,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:00:01,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:00:01,694 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-12 14:00:03,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:03,648 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-12 14:00:03,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:00:03,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-12 14:00:03,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:03,669 INFO L225 Difference]: With dead ends: 698 [2020-10-12 14:00:03,669 INFO L226 Difference]: Without dead ends: 380 [2020-10-12 14:00:03,677 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 14:00:03,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-12 14:00:03,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-12 14:00:03,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-12 14:00:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-12 14:00:03,758 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 54 [2020-10-12 14:00:03,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:03,758 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-12 14:00:03,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:00:03,759 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-12 14:00:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-12 14:00:03,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:03,772 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 14:00:03,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:00:03,772 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:03,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:03,773 INFO L82 PathProgramCache]: Analyzing trace with hash -68647627, now seen corresponding path program 1 times [2020-10-12 14:00:03,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:03,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989779765] [2020-10-12 14:00:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:03,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:03,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:04,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:05,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:05,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-12 14:00:05,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:00:05,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1192 [2020-10-12 14:00:05,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:00:05,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:05,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:05,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:05,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:05,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:05,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:05,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:00:05,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:05,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:05,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:05,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 14:00:05,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:05,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:05,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:05,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:00:05,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:05,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-12 14:00:05,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:05,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:05,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:05,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:00:05,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:05,388 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:05,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989779765] [2020-10-12 14:00:05,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:05,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 14:00:05,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545188049] [2020-10-12 14:00:05,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:00:05,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:05,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:00:05,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:00:05,403 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 8 states. [2020-10-12 14:00:09,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:09,592 INFO L93 Difference]: Finished difference Result 1504 states and 2262 transitions. [2020-10-12 14:00:09,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 14:00:09,592 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 123 [2020-10-12 14:00:09,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:09,609 INFO L225 Difference]: With dead ends: 1504 [2020-10-12 14:00:09,609 INFO L226 Difference]: Without dead ends: 1134 [2020-10-12 14:00:09,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-12 14:00:09,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2020-10-12 14:00:09,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1122. [2020-10-12 14:00:09,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2020-10-12 14:00:09,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1578 transitions. [2020-10-12 14:00:09,722 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1578 transitions. Word has length 123 [2020-10-12 14:00:09,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:09,723 INFO L479 AbstractCegarLoop]: Abstraction has 1122 states and 1578 transitions. [2020-10-12 14:00:09,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:00:09,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1578 transitions. [2020-10-12 14:00:09,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-12 14:00:09,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:09,731 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2020-10-12 14:00:09,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:00:09,731 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:09,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:09,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1019764030, now seen corresponding path program 1 times [2020-10-12 14:00:09,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:09,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153678212] [2020-10-12 14:00:09,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:09,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:09,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:09,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:10,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:11,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:13,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:13,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-12 14:00:13,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:00:13,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3856 [2020-10-12 14:00:13,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:13,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:13,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:13,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 14:00:13,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:13,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:13,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:13,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:13,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:13,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:13,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:00:13,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:13,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:13,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:13,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:13,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:13,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:13,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:13,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:00:13,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:13,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 14:00:13,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:13,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 14:00:13,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:13,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 14:00:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:14,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:14,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:14,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 14:00:14,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:14,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 14:00:14,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-12 14:00:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:14,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:14,233 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 94 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:00:14,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153678212] [2020-10-12 14:00:14,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:14,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:00:14,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292160534] [2020-10-12 14:00:14,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:00:14,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:14,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:00:14,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:00:14,239 INFO L87 Difference]: Start difference. First operand 1122 states and 1578 transitions. Second operand 7 states. [2020-10-12 14:00:17,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:17,041 INFO L93 Difference]: Finished difference Result 3214 states and 4667 transitions. [2020-10-12 14:00:17,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:00:17,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 205 [2020-10-12 14:00:17,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:17,059 INFO L225 Difference]: With dead ends: 3214 [2020-10-12 14:00:17,060 INFO L226 Difference]: Without dead ends: 2098 [2020-10-12 14:00:17,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:00:17,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2020-10-12 14:00:17,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 1880. [2020-10-12 14:00:17,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1880 states. [2020-10-12 14:00:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2491 transitions. [2020-10-12 14:00:17,165 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2491 transitions. Word has length 205 [2020-10-12 14:00:17,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:17,173 INFO L479 AbstractCegarLoop]: Abstraction has 1880 states and 2491 transitions. [2020-10-12 14:00:17,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:00:17,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2491 transitions. [2020-10-12 14:00:17,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-12 14:00:17,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:17,213 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:17,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:00:17,215 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:17,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:17,215 INFO L82 PathProgramCache]: Analyzing trace with hash 760149143, now seen corresponding path program 1 times [2020-10-12 14:00:17,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:17,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745024476] [2020-10-12 14:00:17,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:17,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:17,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:17,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:17,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:20,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:22,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:22,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-12 14:00:22,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:00:22,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 14:00:22,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:00:22,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-12 14:00:22,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 14:00:22,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:22,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:22,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:22,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:22,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:22,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:22,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:00:22,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:22,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:22,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:22,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:22,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:22,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:22,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:22,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:22,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:00:22,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:22,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:00:22,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:22,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:22,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:22,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 14:00:22,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:22,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 14:00:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:22,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:22,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:22,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:22,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:00:22,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:22,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-12 14:00:22,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:22,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:00:22,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:22,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:00:22,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 14:00:23,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745024476] [2020-10-12 14:00:23,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:23,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:00:23,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729643057] [2020-10-12 14:00:23,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:00:23,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:23,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:00:23,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:00:23,239 INFO L87 Difference]: Start difference. First operand 1880 states and 2491 transitions. Second operand 10 states. [2020-10-12 14:00:23,771 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-12 14:00:26,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:26,255 INFO L93 Difference]: Finished difference Result 3860 states and 5164 transitions. [2020-10-12 14:00:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 14:00:26,256 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 210 [2020-10-12 14:00:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:26,267 INFO L225 Difference]: With dead ends: 3860 [2020-10-12 14:00:26,267 INFO L226 Difference]: Without dead ends: 1986 [2020-10-12 14:00:26,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-10-12 14:00:26,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2020-10-12 14:00:26,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1876. [2020-10-12 14:00:26,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1876 states. [2020-10-12 14:00:26,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2116 transitions. [2020-10-12 14:00:26,331 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2116 transitions. Word has length 210 [2020-10-12 14:00:26,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:26,332 INFO L479 AbstractCegarLoop]: Abstraction has 1876 states and 2116 transitions. [2020-10-12 14:00:26,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:00:26,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2116 transitions. [2020-10-12 14:00:26,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-12 14:00:26,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:26,339 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:00:26,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:00:26,340 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:26,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:26,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1021842063, now seen corresponding path program 1 times [2020-10-12 14:00:26,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:26,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1550593584] [2020-10-12 14:00:26,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:26,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:26,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:26,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:27,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:31,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:31,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-12 14:00:31,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:00:31,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-12 14:00:31,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:00:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-12 14:00:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 14:00:31,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:31,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:31,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:31,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:31,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:31,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:31,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:00:31,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:31,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:31,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:31,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:31,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:31,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 14:00:31,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:31,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-12 14:00:31,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:31,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:31,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:31,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:00:31,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:31,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-12 14:00:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:31,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:32,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:32,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:32,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:00:32,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:32,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 659 [2020-10-12 14:00:32,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:32,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:00:32,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:00:32,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:33,513 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-12 14:00:33,730 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-12 14:00:33,970 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 68 [2020-10-12 14:00:34,208 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-10-12 14:00:34,471 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2020-10-12 14:00:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 224 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 14:00:36,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1550593584] [2020-10-12 14:00:36,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:36,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:00:36,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205784518] [2020-10-12 14:00:36,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:00:36,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:36,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:00:36,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:00:36,013 INFO L87 Difference]: Start difference. First operand 1876 states and 2116 transitions. Second operand 13 states. [2020-10-12 14:00:36,899 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2020-10-12 14:00:37,118 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2020-10-12 14:00:37,501 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-10-12 14:00:37,706 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2020-10-12 14:00:38,098 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2020-10-12 14:00:38,331 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2020-10-12 14:00:38,679 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2020-10-12 14:00:39,084 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2020-10-12 14:00:39,564 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2020-10-12 14:00:39,826 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2020-10-12 14:00:40,225 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2020-10-12 14:00:40,548 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2020-10-12 14:00:40,981 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2020-10-12 14:00:41,320 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 67 [2020-10-12 14:00:41,632 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2020-10-12 14:00:42,099 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-12 14:00:42,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:42,327 INFO L93 Difference]: Finished difference Result 3768 states and 4279 transitions. [2020-10-12 14:00:42,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 14:00:42,328 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 366 [2020-10-12 14:00:42,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:42,336 INFO L225 Difference]: With dead ends: 3768 [2020-10-12 14:00:42,336 INFO L226 Difference]: Without dead ends: 1892 [2020-10-12 14:00:42,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=280, Invalid=712, Unknown=0, NotChecked=0, Total=992 [2020-10-12 14:00:42,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2020-10-12 14:00:42,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1874. [2020-10-12 14:00:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1874 states. [2020-10-12 14:00:42,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2089 transitions. [2020-10-12 14:00:42,382 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2089 transitions. Word has length 366 [2020-10-12 14:00:42,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:42,383 INFO L479 AbstractCegarLoop]: Abstraction has 1874 states and 2089 transitions. [2020-10-12 14:00:42,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:00:42,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2089 transitions. [2020-10-12 14:00:42,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2020-10-12 14:00:42,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:42,396 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-12 14:00:42,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:00:42,396 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:42,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:42,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1412629185, now seen corresponding path program 1 times [2020-10-12 14:00:42,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:42,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159745026] [2020-10-12 14:00:42,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:42,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:42,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:45,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:45,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:47,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:47,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 578 [2020-10-12 14:00:47,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:00:47,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 14:00:47,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:47,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:00:47,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-12 14:00:47,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:00:47,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:47,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:47,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:47,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:47,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:47,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:47,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:00:47,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:47,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:47,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:47,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:47,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:47,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:47,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:47,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:00:47,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:47,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:47,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:00:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:47,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:47,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:47,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:00:47,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:47,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:00:47,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:47,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:47,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:47,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:47,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:47,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:00:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:47,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:47,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:47,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:47,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:47,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 14:00:47,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:47,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:00:47,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:47,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:00:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:47,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:48,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:48,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:48,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:00:48,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:48,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 579 [2020-10-12 14:00:48,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:00:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:00:48,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:49,148 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2020-10-12 14:00:49,393 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2020-10-12 14:00:49,685 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 74 [2020-10-12 14:00:49,960 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2020-10-12 14:00:50,260 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 80 [2020-10-12 14:00:50,563 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 83 [2020-10-12 14:00:52,925 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 518 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-12 14:00:52,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159745026] [2020-10-12 14:00:52,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:52,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:00:52,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241695222] [2020-10-12 14:00:52,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:00:52,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:52,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:00:52,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:00:52,928 INFO L87 Difference]: Start difference. First operand 1874 states and 2089 transitions. Second operand 13 states. [2020-10-12 14:00:53,690 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2020-10-12 14:00:53,893 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-10-12 14:00:54,203 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2020-10-12 14:00:54,416 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2020-10-12 14:00:54,615 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-10-12 14:00:54,872 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2020-10-12 14:00:55,320 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2020-10-12 14:00:55,871 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 91 [2020-10-12 14:00:56,458 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2020-10-12 14:00:56,686 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2020-10-12 14:00:57,012 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2020-10-12 14:00:57,305 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2020-10-12 14:00:57,742 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2020-10-12 14:00:58,183 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 75 [2020-10-12 14:00:58,550 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 88 [2020-10-12 14:00:58,933 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2020-10-12 14:00:59,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:59,287 INFO L93 Difference]: Finished difference Result 3760 states and 4213 transitions. [2020-10-12 14:00:59,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:00:59,288 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 562 [2020-10-12 14:00:59,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:59,297 INFO L225 Difference]: With dead ends: 3760 [2020-10-12 14:00:59,297 INFO L226 Difference]: Without dead ends: 1924 [2020-10-12 14:00:59,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=264, Invalid=666, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:00:59,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2020-10-12 14:00:59,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1799. [2020-10-12 14:00:59,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1799 states. [2020-10-12 14:00:59,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2011 transitions. [2020-10-12 14:00:59,345 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2011 transitions. Word has length 562 [2020-10-12 14:00:59,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:59,346 INFO L479 AbstractCegarLoop]: Abstraction has 1799 states and 2011 transitions. [2020-10-12 14:00:59,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:00:59,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2011 transitions. [2020-10-12 14:00:59,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2020-10-12 14:00:59,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:59,361 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:59,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:00:59,361 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:59,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:59,362 INFO L82 PathProgramCache]: Analyzing trace with hash 317976822, now seen corresponding path program 1 times [2020-10-12 14:00:59,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:59,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599283567] [2020-10-12 14:00:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:59,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:59,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:00,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:01,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 585 [2020-10-12 14:01:04,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:01:04,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4784 [2020-10-12 14:01:04,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-12 14:01:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 14:01:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:04,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:04,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:01:04,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:04,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:04,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:04,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:04,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:04,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:01:04,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:04,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:04,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:04,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:04,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:04,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:01:04,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:04,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:04,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:01:04,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 14:01:04,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 14:01:04,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:04,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:01:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:05,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:05,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:05,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:05,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-10-12 14:01:05,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:05,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:07,466 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 525 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-12 14:01:07,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599283567] [2020-10-12 14:01:07,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:07,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:07,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266782479] [2020-10-12 14:01:07,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:07,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:07,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:07,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:07,470 INFO L87 Difference]: Start difference. First operand 1799 states and 2011 transitions. Second operand 13 states. [2020-10-12 14:01:08,587 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-10-12 14:01:08,920 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-10-12 14:01:09,151 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-12 14:01:09,286 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-12 14:01:09,457 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:01:09,595 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-10-12 14:01:10,524 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-10-12 14:01:11,041 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-12 14:01:11,302 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-10-12 14:01:11,449 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2020-10-12 14:01:11,636 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-12 14:01:11,786 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2020-10-12 14:01:12,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:12,202 INFO L93 Difference]: Finished difference Result 3606 states and 4054 transitions. [2020-10-12 14:01:12,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:01:12,203 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 569 [2020-10-12 14:01:12,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:12,219 INFO L225 Difference]: With dead ends: 3606 [2020-10-12 14:01:12,220 INFO L226 Difference]: Without dead ends: 1970 [2020-10-12 14:01:12,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:01:12,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2020-10-12 14:01:12,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1960. [2020-10-12 14:01:12,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1960 states. [2020-10-12 14:01:12,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2180 transitions. [2020-10-12 14:01:12,279 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2180 transitions. Word has length 569 [2020-10-12 14:01:12,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:12,280 INFO L479 AbstractCegarLoop]: Abstraction has 1960 states and 2180 transitions. [2020-10-12 14:01:12,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:12,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2180 transitions. [2020-10-12 14:01:12,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2020-10-12 14:01:12,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:12,287 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:12,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:01:12,288 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:12,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:12,288 INFO L82 PathProgramCache]: Analyzing trace with hash -779002578, now seen corresponding path program 1 times [2020-10-12 14:01:12,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:12,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498900281] [2020-10-12 14:01:12,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:12,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:12,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:13,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:16,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:16,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:17,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 645 [2020-10-12 14:01:17,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:17,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-12 14:01:17,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:17,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:17,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-12 14:01:17,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 14:01:17,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:17,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:17,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:17,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:17,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:17,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:01:17,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:17,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:17,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:17,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:17,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:17,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:17,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:17,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:17,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:01:17,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:17,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:17,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:17,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:17,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:17,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:17,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:17,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:17,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:17,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-12 14:01:17,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:17,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:17,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:17,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 14:01:17,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:17,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:17,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:18,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:18,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:18,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:01:18,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:18,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 970 [2020-10-12 14:01:18,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:18,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:01:18,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:19,459 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-10-12 14:01:19,625 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-10-12 14:01:19,784 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2020-10-12 14:01:19,949 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2020-10-12 14:01:20,112 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-10-12 14:01:20,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-12 14:01:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:20,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:20,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:20,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:20,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:20,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:01:20,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 14:01:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:20,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:22,123 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 414 proven. 176 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-10-12 14:01:22,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498900281] [2020-10-12 14:01:22,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:22,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:22,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877108287] [2020-10-12 14:01:22,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:22,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:22,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:22,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:22,126 INFO L87 Difference]: Start difference. First operand 1960 states and 2180 transitions. Second operand 13 states. [2020-10-12 14:01:23,169 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2020-10-12 14:01:23,356 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2020-10-12 14:01:23,714 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2020-10-12 14:01:24,102 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2020-10-12 14:01:24,493 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2020-10-12 14:01:24,825 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2020-10-12 14:01:25,225 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 94 [2020-10-12 14:01:26,521 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2020-10-12 14:01:26,706 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 54 [2020-10-12 14:01:27,038 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2020-10-12 14:01:27,338 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 56 [2020-10-12 14:01:27,567 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 59 [2020-10-12 14:01:27,870 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 63 [2020-10-12 14:01:28,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:28,460 INFO L93 Difference]: Finished difference Result 3924 states and 4374 transitions. [2020-10-12 14:01:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:01:28,461 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 629 [2020-10-12 14:01:28,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:28,468 INFO L225 Difference]: With dead ends: 3924 [2020-10-12 14:01:28,468 INFO L226 Difference]: Without dead ends: 2085 [2020-10-12 14:01:28,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=243, Invalid=627, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:01:28,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2020-10-12 14:01:28,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2075. [2020-10-12 14:01:28,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2075 states. [2020-10-12 14:01:28,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2296 transitions. [2020-10-12 14:01:28,519 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2296 transitions. Word has length 629 [2020-10-12 14:01:28,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:28,520 INFO L479 AbstractCegarLoop]: Abstraction has 2075 states and 2296 transitions. [2020-10-12 14:01:28,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:28,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2296 transitions. [2020-10-12 14:01:28,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2020-10-12 14:01:28,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:28,527 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-12 14:01:28,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:01:28,527 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:28,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:28,528 INFO L82 PathProgramCache]: Analyzing trace with hash 297731274, now seen corresponding path program 1 times [2020-10-12 14:01:28,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:28,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802570708] [2020-10-12 14:01:28,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:28,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:28,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:29,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:30,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:31,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:33,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:33,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 668 [2020-10-12 14:01:33,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 14:01:33,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 433 [2020-10-12 14:01:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:33,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:33,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:33,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:33,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:33,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:33,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:01:33,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:33,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:33,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:33,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:33,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:33,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:33,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:33,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:01:33,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:33,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:33,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:33,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:33,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:33,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:33,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:33,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:33,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:33,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:33,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:01:33,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:33,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:33,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:33,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:33,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:34,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:34,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:34,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:34,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:01:34,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:34,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:01:34,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:34,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:01:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:34,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:34,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:34,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:01:34,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:34,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 14:01:34,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:34,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:34,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:34,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:01:34,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:34,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:01:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:34,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:34,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:35,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:35,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:35,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:35,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 830 [2020-10-12 14:01:35,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:35,702 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2020-10-12 14:01:35,883 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2020-10-12 14:01:36,062 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-12 14:01:36,263 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2020-10-12 14:01:36,464 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-10-12 14:01:38,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 655 proven. 2 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2020-10-12 14:01:38,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802570708] [2020-10-12 14:01:38,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:38,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:38,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719258968] [2020-10-12 14:01:38,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:38,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:38,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:38,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:38,210 INFO L87 Difference]: Start difference. First operand 2075 states and 2296 transitions. Second operand 13 states. [2020-10-12 14:01:38,825 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-10-12 14:01:39,188 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-12 14:01:39,445 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2020-10-12 14:01:39,614 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-10-12 14:01:39,806 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-12 14:01:40,244 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-12 14:01:40,483 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2020-10-12 14:01:40,718 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2020-10-12 14:01:40,908 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-10-12 14:01:41,445 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-10-12 14:01:41,872 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-10-12 14:01:42,046 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-10-12 14:01:42,251 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 14:01:42,728 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 14:01:42,971 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2020-10-12 14:01:43,254 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-12 14:01:43,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:43,584 INFO L93 Difference]: Finished difference Result 4160 states and 4624 transitions. [2020-10-12 14:01:43,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:01:43,586 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 650 [2020-10-12 14:01:43,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:43,594 INFO L225 Difference]: With dead ends: 4160 [2020-10-12 14:01:43,595 INFO L226 Difference]: Without dead ends: 2266 [2020-10-12 14:01:43,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=271, Invalid=659, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:01:43,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2020-10-12 14:01:43,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 2252. [2020-10-12 14:01:43,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2252 states. [2020-10-12 14:01:43,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 2476 transitions. [2020-10-12 14:01:43,646 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 2476 transitions. Word has length 650 [2020-10-12 14:01:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:43,647 INFO L479 AbstractCegarLoop]: Abstraction has 2252 states and 2476 transitions. [2020-10-12 14:01:43,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:43,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 2476 transitions. [2020-10-12 14:01:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2020-10-12 14:01:43,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:43,661 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:01:43,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:01:43,661 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:43,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:43,662 INFO L82 PathProgramCache]: Analyzing trace with hash 326490438, now seen corresponding path program 1 times [2020-10-12 14:01:43,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:43,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868941313] [2020-10-12 14:01:43,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:43,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:44,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:45,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:46,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:46,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 746 [2020-10-12 14:01:46,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:01:46,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2839 [2020-10-12 14:01:46,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:46,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:46,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-12 14:01:46,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:01:46,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:46,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:46,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:46,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:46,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:46,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:46,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:01:46,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:46,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:46,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:46,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:46,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:46,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:46,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:46,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:46,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:01:46,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:46,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:46,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:46,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:46,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:46,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:46,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:46,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:01:46,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:46,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:46,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:46,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:46,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:46,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:01:46,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:46,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:01:46,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:46,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:46,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:01:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:46,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:47,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:47,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:01:47,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:47,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:01:47,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:47,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:47,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:47,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 14:01:47,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:47,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 14:01:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:47,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:47,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:47,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:47,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:47,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:47,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-12 14:01:47,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:47,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:47,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:47,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:47,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:47,798 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-10-12 14:01:47,932 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-10-12 14:01:48,068 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-10-12 14:01:49,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1394 backedges. 733 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-12 14:01:49,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868941313] [2020-10-12 14:01:49,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:49,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:49,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221474949] [2020-10-12 14:01:49,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:49,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:49,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:49,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:49,768 INFO L87 Difference]: Start difference. First operand 2252 states and 2476 transitions. Second operand 13 states. [2020-10-12 14:01:50,488 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-10-12 14:01:51,307 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2020-10-12 14:01:51,653 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-10-12 14:01:51,974 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-10-12 14:01:52,407 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 74 [2020-10-12 14:01:52,754 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2020-10-12 14:01:53,660 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2020-10-12 14:01:54,287 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2020-10-12 14:01:54,592 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2020-10-12 14:01:54,883 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2020-10-12 14:01:55,213 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 62 [2020-10-12 14:01:55,511 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 64 [2020-10-12 14:01:56,051 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2020-10-12 14:01:56,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:56,403 INFO L93 Difference]: Finished difference Result 4510 states and 4974 transitions. [2020-10-12 14:01:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:01:56,404 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 728 [2020-10-12 14:01:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:56,414 INFO L225 Difference]: With dead ends: 4510 [2020-10-12 14:01:56,414 INFO L226 Difference]: Without dead ends: 2435 [2020-10-12 14:01:56,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=252, Invalid=678, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:01:56,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2435 states. [2020-10-12 14:01:56,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2435 to 2423. [2020-10-12 14:01:56,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-10-12 14:01:56,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 2648 transitions. [2020-10-12 14:01:56,465 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 2648 transitions. Word has length 728 [2020-10-12 14:01:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:56,466 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 2648 transitions. [2020-10-12 14:01:56,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:56,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 2648 transitions. [2020-10-12 14:01:56,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2020-10-12 14:01:56,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:56,476 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:01:56,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:01:56,476 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:56,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:56,476 INFO L82 PathProgramCache]: Analyzing trace with hash 423533110, now seen corresponding path program 1 times [2020-10-12 14:01:56,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:56,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731872117] [2020-10-12 14:01:56,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:56,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:56,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:58,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:00,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 847 [2020-10-12 14:02:00,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:02:00,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3630 [2020-10-12 14:02:00,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:00,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:00,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-12 14:02:00,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 14:02:00,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:00,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:00,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:00,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:00,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:00,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:00,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:00,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:00,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:00,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:00,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:00,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:00,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:00,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:00,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:00,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:02:00,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:00,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:00,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:00,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:00,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:00,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:00,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:00,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:00,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:00,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:00,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:00,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:02:00,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:00,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:00,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:00,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:00,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:00,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:00,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:00,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:00,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:00,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:02:00,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:00,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:00,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:00,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:00,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:00,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:00,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 14:02:00,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:00,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:00,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:00,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 14:02:00,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:00,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:00,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:01,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:01,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:01,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:01,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-12 14:02:01,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:01,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:01,511 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2020-10-12 14:02:01,788 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2020-10-12 14:02:02,089 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2020-10-12 14:02:02,403 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 81 [2020-10-12 14:02:02,741 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2020-10-12 14:02:03,082 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2020-10-12 14:02:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1864 backedges. 881 proven. 2 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2020-10-12 14:02:06,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731872117] [2020-10-12 14:02:06,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:06,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:06,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123373610] [2020-10-12 14:02:06,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:06,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:06,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:06,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:06,339 INFO L87 Difference]: Start difference. First operand 2423 states and 2648 transitions. Second operand 13 states. [2020-10-12 14:02:06,989 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2020-10-12 14:02:07,231 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2020-10-12 14:02:07,533 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2020-10-12 14:02:07,771 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2020-10-12 14:02:08,200 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 100 [2020-10-12 14:02:08,558 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 77 [2020-10-12 14:02:09,010 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 95 [2020-10-12 14:02:09,566 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 90 [2020-10-12 14:02:09,872 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-10-12 14:02:10,447 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 53 [2020-10-12 14:02:10,730 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 58 [2020-10-12 14:02:11,077 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 61 [2020-10-12 14:02:11,351 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 66 [2020-10-12 14:02:11,824 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 69 [2020-10-12 14:02:12,269 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 75 [2020-10-12 14:02:12,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:12,810 INFO L93 Difference]: Finished difference Result 4672 states and 5130 transitions. [2020-10-12 14:02:12,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:02:12,811 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 827 [2020-10-12 14:02:12,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:12,819 INFO L225 Difference]: With dead ends: 4672 [2020-10-12 14:02:12,820 INFO L226 Difference]: Without dead ends: 2329 [2020-10-12 14:02:12,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:02:12,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2020-10-12 14:02:12,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2313. [2020-10-12 14:02:12,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2313 states. [2020-10-12 14:02:12,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 2519 transitions. [2020-10-12 14:02:12,867 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 2519 transitions. Word has length 827 [2020-10-12 14:02:12,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:12,868 INFO L479 AbstractCegarLoop]: Abstraction has 2313 states and 2519 transitions. [2020-10-12 14:02:12,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:12,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 2519 transitions. [2020-10-12 14:02:12,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2020-10-12 14:02:12,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:12,881 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:12,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:02:12,881 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:12,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:12,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1733425663, now seen corresponding path program 1 times [2020-10-12 14:02:12,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:12,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [399944831] [2020-10-12 14:02:12,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:13,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 925 [2020-10-12 14:02:14,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1330 [2020-10-12 14:02:14,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:14,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 14:02:14,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 14:02:14,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:14,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:14,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:14,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:14,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:14,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:02:14,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:14,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:14,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:14,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:02:14,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:14,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:14,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:02:14,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:14,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:14,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:14,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:14,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:14,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:14,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:14,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:02:14,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:14,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:14,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:14,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:14,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:14,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:15,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:15,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:15,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:15,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 14:02:15,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:02:15,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2367 backedges. 340 proven. 7 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-10-12 14:02:15,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [399944831] [2020-10-12 14:02:15,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:15,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:02:15,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749815337] [2020-10-12 14:02:15,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:02:15,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:15,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:02:15,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:02:15,452 INFO L87 Difference]: Start difference. First operand 2313 states and 2519 transitions. Second operand 5 states. [2020-10-12 14:02:16,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:16,618 INFO L93 Difference]: Finished difference Result 5184 states and 5815 transitions. [2020-10-12 14:02:16,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:02:16,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 903 [2020-10-12 14:02:16,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:16,631 INFO L225 Difference]: With dead ends: 5184 [2020-10-12 14:02:16,631 INFO L226 Difference]: Without dead ends: 3059 [2020-10-12 14:02:16,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:02:16,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2020-10-12 14:02:16,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3057. [2020-10-12 14:02:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3057 states. [2020-10-12 14:02:16,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 3437 transitions. [2020-10-12 14:02:16,692 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 3437 transitions. Word has length 903 [2020-10-12 14:02:16,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:16,692 INFO L479 AbstractCegarLoop]: Abstraction has 3057 states and 3437 transitions. [2020-10-12 14:02:16,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:02:16,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 3437 transitions. [2020-10-12 14:02:16,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2020-10-12 14:02:16,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:16,706 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:02:16,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:02:16,706 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:16,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:16,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1168217842, now seen corresponding path program 1 times [2020-10-12 14:02:16,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:16,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694967579] [2020-10-12 14:02:16,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:16,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:17,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:17,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1007 [2020-10-12 14:02:21,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:02:21,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-12 14:02:21,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 14:02:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:02:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 316 [2020-10-12 14:02:21,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:22,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:22,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:22,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:22,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:22,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:22,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:22,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:22,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:22,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:22,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:22,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:22,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:22,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:22,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:22,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:22,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:22,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:22,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:22,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:22,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:22,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:22,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:22,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:22,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:22,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:22,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:22,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:22,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:02:22,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:22,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:22,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:22,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:22,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:22,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:22,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:22,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:22,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:22,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:22,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:22,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:22,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:22,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:22,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:22,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:22,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:22,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:22,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:22,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:22,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:22,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:02:22,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:22,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:22,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:22,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:22,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:22,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:22,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:22,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:22,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:22,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:02:22,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:22,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:22,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:22,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:22,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:22,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:22,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:22,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:22,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:22,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:22,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:02:22,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:02:22,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:22,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:22,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:22,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:22,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:22,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:22,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-12 14:02:22,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:02:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:22,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:22,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:22,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:02:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:22,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:22,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:22,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:22,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:02:22,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:22,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:02:22,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:22,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:22,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:22,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 14:02:22,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 1500 proven. 100 refuted. 0 times theorem prover too weak. 1370 trivial. 0 not checked. [2020-10-12 14:02:23,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694967579] [2020-10-12 14:02:23,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:23,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 14:02:23,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573578877] [2020-10-12 14:02:23,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:02:23,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:23,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:02:23,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:02:23,074 INFO L87 Difference]: Start difference. First operand 3057 states and 3437 transitions. Second operand 9 states. [2020-10-12 14:02:25,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:25,387 INFO L93 Difference]: Finished difference Result 7062 states and 8231 transitions. [2020-10-12 14:02:25,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 14:02:25,388 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 983 [2020-10-12 14:02:25,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:25,404 INFO L225 Difference]: With dead ends: 7062 [2020-10-12 14:02:25,404 INFO L226 Difference]: Without dead ends: 4193 [2020-10-12 14:02:25,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-12 14:02:25,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4193 states. [2020-10-12 14:02:25,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4193 to 4177. [2020-10-12 14:02:25,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4177 states. [2020-10-12 14:02:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4177 states to 4177 states and 4899 transitions. [2020-10-12 14:02:25,493 INFO L78 Accepts]: Start accepts. Automaton has 4177 states and 4899 transitions. Word has length 983 [2020-10-12 14:02:25,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:25,494 INFO L479 AbstractCegarLoop]: Abstraction has 4177 states and 4899 transitions. [2020-10-12 14:02:25,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:02:25,494 INFO L276 IsEmpty]: Start isEmpty. Operand 4177 states and 4899 transitions. [2020-10-12 14:02:25,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 987 [2020-10-12 14:02:25,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:25,508 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:02:25,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:02:25,508 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:25,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:25,509 INFO L82 PathProgramCache]: Analyzing trace with hash 907822021, now seen corresponding path program 1 times [2020-10-12 14:02:25,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:25,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652838134] [2020-10-12 14:02:25,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:25,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:26,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:27,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:29,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:29,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1010 [2020-10-12 14:02:29,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:02:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3841 [2020-10-12 14:02:29,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 956 [2020-10-12 14:02:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 14:02:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:29,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:29,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:29,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:29,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:29,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:29,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:29,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:29,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:29,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:29,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:29,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:29,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:29,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:29,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:29,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:29,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:29,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:02:29,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:29,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:29,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:29,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:29,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:29,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:29,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:29,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:29,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:29,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:29,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:29,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:29,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:29,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:29,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:29,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:29,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:29,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:29,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:29,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:29,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:29,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:02:29,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:29,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:29,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:29,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:29,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:29,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:29,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:29,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:02:29,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:29,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:29,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:29,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:29,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:29,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:29,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:29,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:29,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:29,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:29,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:02:29,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:29,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:29,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:29,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:29,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:29,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:29,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:29,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:02:29,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:29,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:29,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:29,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:29,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:29,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:29,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:29,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:29,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:29,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:29,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:02:29,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:29,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:29,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:29,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:29,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:30,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:02:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:30,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:30,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:30,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:02:30,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:30,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:02:30,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:30,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:30,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 14:02:30,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2986 backedges. 389 proven. 8 refuted. 0 times theorem prover too weak. 2589 trivial. 0 not checked. [2020-10-12 14:02:30,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652838134] [2020-10-12 14:02:30,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:30,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:02:30,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696927622] [2020-10-12 14:02:30,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:02:30,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:30,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:02:30,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:02:30,386 INFO L87 Difference]: Start difference. First operand 4177 states and 4899 transitions. Second operand 5 states. [2020-10-12 14:02:31,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:31,663 INFO L93 Difference]: Finished difference Result 9080 states and 10790 transitions. [2020-10-12 14:02:31,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:02:31,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 986 [2020-10-12 14:02:31,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:31,695 INFO L225 Difference]: With dead ends: 9080 [2020-10-12 14:02:31,695 INFO L226 Difference]: Without dead ends: 5091 [2020-10-12 14:02:31,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:02:31,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5091 states. [2020-10-12 14:02:31,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5091 to 4909. [2020-10-12 14:02:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4909 states. [2020-10-12 14:02:31,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4909 states to 4909 states and 5779 transitions. [2020-10-12 14:02:31,812 INFO L78 Accepts]: Start accepts. Automaton has 4909 states and 5779 transitions. Word has length 986 [2020-10-12 14:02:31,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:31,813 INFO L479 AbstractCegarLoop]: Abstraction has 4909 states and 5779 transitions. [2020-10-12 14:02:31,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:02:31,814 INFO L276 IsEmpty]: Start isEmpty. Operand 4909 states and 5779 transitions. [2020-10-12 14:02:31,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1067 [2020-10-12 14:02:31,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:31,834 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:31,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:02:31,835 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:31,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:31,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1668860204, now seen corresponding path program 1 times [2020-10-12 14:02:31,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:31,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554724962] [2020-10-12 14:02:31,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:32,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:32,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:34,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:35,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:36,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1092 [2020-10-12 14:02:37,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:02:37,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-12 14:02:37,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1038 [2020-10-12 14:02:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 14:02:37,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:37,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:37,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:37,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:37,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:37,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:37,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:37,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:37,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:37,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:37,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:37,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:37,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:37,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:37,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:37,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:37,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:37,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:37,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:37,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:37,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:37,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:37,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:37,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:37,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:02:37,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:37,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:37,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:37,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:37,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:02:37,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:37,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:37,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:37,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:37,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:02:37,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:37,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:37,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:37,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:37,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:37,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:37,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:02:37,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:37,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:37,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:37,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:37,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:37,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:37,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:02:37,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:37,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:37,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:37,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:02:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:37,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:02:37,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:37,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 14:02:37,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:37,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2020-10-12 14:02:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:37,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:02:37,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:37,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:02:37,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:02:37,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:38,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3669 backedges. 438 proven. 9 refuted. 0 times theorem prover too weak. 3222 trivial. 0 not checked. [2020-10-12 14:02:38,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554724962] [2020-10-12 14:02:38,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:38,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:02:38,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473150978] [2020-10-12 14:02:38,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:02:38,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:38,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:02:38,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:02:38,137 INFO L87 Difference]: Start difference. First operand 4909 states and 5779 transitions. Second operand 5 states. [2020-10-12 14:02:38,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:38,970 INFO L93 Difference]: Finished difference Result 9659 states and 11432 transitions. [2020-10-12 14:02:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:02:38,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1066 [2020-10-12 14:02:38,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:38,987 INFO L225 Difference]: With dead ends: 9659 [2020-10-12 14:02:38,987 INFO L226 Difference]: Without dead ends: 4907 [2020-10-12 14:02:38,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:02:39,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4907 states. [2020-10-12 14:02:39,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4907 to 4907. [2020-10-12 14:02:39,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4907 states. [2020-10-12 14:02:39,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4907 states to 4907 states and 5754 transitions. [2020-10-12 14:02:39,083 INFO L78 Accepts]: Start accepts. Automaton has 4907 states and 5754 transitions. Word has length 1066 [2020-10-12 14:02:39,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:39,084 INFO L479 AbstractCegarLoop]: Abstraction has 4907 states and 5754 transitions. [2020-10-12 14:02:39,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:02:39,085 INFO L276 IsEmpty]: Start isEmpty. Operand 4907 states and 5754 transitions. [2020-10-12 14:02:39,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2020-10-12 14:02:39,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:39,103 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:39,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:02:39,103 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:39,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:39,104 INFO L82 PathProgramCache]: Analyzing trace with hash 125565092, now seen corresponding path program 1 times [2020-10-12 14:02:39,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:39,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244020047] [2020-10-12 14:02:39,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:39,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:39,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:41,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:42,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:44,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:44,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1116 [2020-10-12 14:02:44,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:02:44,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 14:02:44,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:44,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:44,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 968 [2020-10-12 14:02:44,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 14:02:44,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:44,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:44,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:44,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:44,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:44,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:44,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:44,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:44,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:44,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:44,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:44,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:44,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:44,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:44,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:44,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:44,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:44,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:44,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:44,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:44,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:44,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:44,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:44,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:44,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:44,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:44,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:44,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:44,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:44,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:44,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:44,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:44,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:02:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:44,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:44,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:44,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:44,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:44,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:02:44,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:44,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:44,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:44,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:44,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:44,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:44,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:44,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:02:44,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:44,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:44,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:44,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:44,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:44,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:44,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:44,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:02:44,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:44,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:44,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:44,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:44,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:44,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:44,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:44,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:44,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:44,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:44,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:02:44,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:44,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:44,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:44,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:44,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:02:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:44,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:44,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:44,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:02:44,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:44,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:02:44,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:44,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 14:02:44,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:44,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2020-10-12 14:02:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:44,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:44,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:44,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 14:02:44,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:44,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 14:02:44,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-12 14:02:44,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3802 backedges. 1143 proven. 2 refuted. 0 times theorem prover too weak. 2657 trivial. 0 not checked. [2020-10-12 14:02:45,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244020047] [2020-10-12 14:02:45,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:45,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:02:45,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439758227] [2020-10-12 14:02:45,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:02:45,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:45,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:02:45,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:02:45,318 INFO L87 Difference]: Start difference. First operand 4907 states and 5754 transitions. Second operand 7 states. [2020-10-12 14:02:46,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:46,941 INFO L93 Difference]: Finished difference Result 10758 states and 12821 transitions. [2020-10-12 14:02:46,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:02:46,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1090 [2020-10-12 14:02:46,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:46,959 INFO L225 Difference]: With dead ends: 10758 [2020-10-12 14:02:46,959 INFO L226 Difference]: Without dead ends: 4373 [2020-10-12 14:02:46,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:02:46,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4373 states. [2020-10-12 14:02:47,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4373 to 4157. [2020-10-12 14:02:47,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4157 states. [2020-10-12 14:02:47,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4157 states to 4157 states and 4675 transitions. [2020-10-12 14:02:47,051 INFO L78 Accepts]: Start accepts. Automaton has 4157 states and 4675 transitions. Word has length 1090 [2020-10-12 14:02:47,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:47,052 INFO L479 AbstractCegarLoop]: Abstraction has 4157 states and 4675 transitions. [2020-10-12 14:02:47,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:02:47,052 INFO L276 IsEmpty]: Start isEmpty. Operand 4157 states and 4675 transitions. [2020-10-12 14:02:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1108 [2020-10-12 14:02:47,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:47,069 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:47,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:02:47,070 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:47,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:47,070 INFO L82 PathProgramCache]: Analyzing trace with hash -787945851, now seen corresponding path program 1 times [2020-10-12 14:02:47,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:47,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379401416] [2020-10-12 14:02:47,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:47,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:47,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:49,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1133 [2020-10-12 14:02:52,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:02:52,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 14:02:52,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:52,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 14:02:52,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 14:02:52,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:52,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:52,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:52,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:52,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:52,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:52,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:52,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:52,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:52,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:02:52,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:52,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:52,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:52,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:52,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:52,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:52,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:52,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:02:52,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:52,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:52,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:52,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:52,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:02:52,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:52,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:52,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:52,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:52,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:02:52,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:52,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:52,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-12 14:02:52,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:52,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:52,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:02:52,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:02:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:02:52,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 14:02:52,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:52,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:02:52,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:53,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-12 14:02:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:53,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:53,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:53,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 14:02:53,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:53,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:02:53,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:53,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:53,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-12 14:02:53,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:53,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:53,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3882 backedges. 1172 proven. 91 refuted. 0 times theorem prover too weak. 2619 trivial. 0 not checked. [2020-10-12 14:02:53,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379401416] [2020-10-12 14:02:53,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:53,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:02:53,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633318247] [2020-10-12 14:02:53,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:02:53,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:53,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:02:53,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:02:53,565 INFO L87 Difference]: Start difference. First operand 4157 states and 4675 transitions. Second operand 8 states. [2020-10-12 14:02:55,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:55,668 INFO L93 Difference]: Finished difference Result 8498 states and 9623 transitions. [2020-10-12 14:02:55,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:02:55,670 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1107 [2020-10-12 14:02:55,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:55,683 INFO L225 Difference]: With dead ends: 8498 [2020-10-12 14:02:55,683 INFO L226 Difference]: Without dead ends: 4529 [2020-10-12 14:02:55,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:55,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4529 states. [2020-10-12 14:02:55,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4529 to 4529. [2020-10-12 14:02:55,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4529 states. [2020-10-12 14:02:55,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 4973 transitions. [2020-10-12 14:02:55,758 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 4973 transitions. Word has length 1107 [2020-10-12 14:02:55,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:55,760 INFO L479 AbstractCegarLoop]: Abstraction has 4529 states and 4973 transitions. [2020-10-12 14:02:55,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:02:55,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 4973 transitions. [2020-10-12 14:02:55,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1226 [2020-10-12 14:02:55,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:55,786 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:55,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:02:55,787 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:55,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1595510120, now seen corresponding path program 1 times [2020-10-12 14:02:55,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:55,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169862060] [2020-10-12 14:02:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:56,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:56,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:56,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:56,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:01,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1253 [2020-10-12 14:03:01,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:03:01,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-12 14:03:01,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 14:03:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:03:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 416 [2020-10-12 14:03:01,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:01,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:01,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:01,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:01,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:01,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:01,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:01,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:01,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:01,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:01,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:01,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:01,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:01,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:01,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:01,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:01,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:01,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:01,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:01,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:01,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:01,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:01,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:01,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:01,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:01,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:01,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:01,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:01,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:01,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:01,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:01,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:01,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:01,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:01,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:03:01,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:01,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:01,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:01,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:01,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:01,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:01,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:01,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:01,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:01,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:03:01,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:01,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:01,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:01,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:01,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:01,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:01,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:01,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:01,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:01,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:03:01,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:03:01,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:01,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:01,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:01,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:01,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:01,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-12 14:03:01,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:01,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:03:01,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:01,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:01,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:01,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:01,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:01,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:01,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:01,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 14:03:01,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 14:03:01,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:01,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:01,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:01,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:03:01,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:01,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 14:03:01,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:01,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:03:01,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:01,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-12 14:03:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:02,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:02,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:02,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 14:03:02,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:02,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:03:02,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:02,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-12 14:03:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:02,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:03,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4862 backedges. 2598 proven. 380 refuted. 0 times theorem prover too weak. 1884 trivial. 0 not checked. [2020-10-12 14:03:03,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169862060] [2020-10-12 14:03:03,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:03,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 14:03:03,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662674661] [2020-10-12 14:03:03,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 14:03:03,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:03,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 14:03:03,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:03:03,034 INFO L87 Difference]: Start difference. First operand 4529 states and 4973 transitions. Second operand 11 states. [2020-10-12 14:03:05,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:05,930 INFO L93 Difference]: Finished difference Result 9254 states and 10194 transitions. [2020-10-12 14:03:05,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 14:03:05,931 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1225 [2020-10-12 14:03:05,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:05,955 INFO L225 Difference]: With dead ends: 9254 [2020-10-12 14:03:05,956 INFO L226 Difference]: Without dead ends: 4913 [2020-10-12 14:03:05,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2020-10-12 14:03:05,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4913 states. [2020-10-12 14:03:06,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4913 to 4905. [2020-10-12 14:03:06,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4905 states. [2020-10-12 14:03:06,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4905 states to 4905 states and 5383 transitions. [2020-10-12 14:03:06,049 INFO L78 Accepts]: Start accepts. Automaton has 4905 states and 5383 transitions. Word has length 1225 [2020-10-12 14:03:06,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:06,051 INFO L479 AbstractCegarLoop]: Abstraction has 4905 states and 5383 transitions. [2020-10-12 14:03:06,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 14:03:06,051 INFO L276 IsEmpty]: Start isEmpty. Operand 4905 states and 5383 transitions. [2020-10-12 14:03:06,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1254 [2020-10-12 14:03:06,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:06,073 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:06,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:03:06,074 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:06,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:06,075 INFO L82 PathProgramCache]: Analyzing trace with hash 404474608, now seen corresponding path program 1 times [2020-10-12 14:03:06,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:06,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371877417] [2020-10-12 14:03:06,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:06,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:06,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:08,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1281 [2020-10-12 14:03:10,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:03:10,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3995 [2020-10-12 14:03:10,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1227 [2020-10-12 14:03:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 14:03:10,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:10,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:10,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:10,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:10,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:10,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:10,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:10,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:10,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:10,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:03:10,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:10,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:03:10,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:10,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:03:10,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:10,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:03:10,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:10,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:10,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:10,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:03:10,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:03:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 14:03:10,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:03:10,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:10,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:03:10,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4929 backedges. 487 proven. 10 refuted. 0 times theorem prover too weak. 4432 trivial. 0 not checked. [2020-10-12 14:03:11,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371877417] [2020-10-12 14:03:11,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:11,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:03:11,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162906706] [2020-10-12 14:03:11,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:03:11,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:11,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:03:11,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:03:11,534 INFO L87 Difference]: Start difference. First operand 4905 states and 5383 transitions. Second operand 5 states. [2020-10-12 14:03:12,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:12,363 INFO L93 Difference]: Finished difference Result 9635 states and 10614 transitions. [2020-10-12 14:03:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:03:12,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1253 [2020-10-12 14:03:12,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:12,371 INFO L225 Difference]: With dead ends: 9635 [2020-10-12 14:03:12,371 INFO L226 Difference]: Without dead ends: 4903 [2020-10-12 14:03:12,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:03:12,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2020-10-12 14:03:12,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4903. [2020-10-12 14:03:12,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4903 states. [2020-10-12 14:03:12,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4903 states to 4903 states and 5360 transitions. [2020-10-12 14:03:12,441 INFO L78 Accepts]: Start accepts. Automaton has 4903 states and 5360 transitions. Word has length 1253 [2020-10-12 14:03:12,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:12,443 INFO L479 AbstractCegarLoop]: Abstraction has 4903 states and 5360 transitions. [2020-10-12 14:03:12,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:03:12,443 INFO L276 IsEmpty]: Start isEmpty. Operand 4903 states and 5360 transitions. [2020-10-12 14:03:12,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1256 [2020-10-12 14:03:12,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:12,461 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:12,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:03:12,462 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:12,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:12,463 INFO L82 PathProgramCache]: Analyzing trace with hash 308977996, now seen corresponding path program 1 times [2020-10-12 14:03:12,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:12,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474628855] [2020-10-12 14:03:12,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:12,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:12,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:14,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:15,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:17,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:17,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1283 [2020-10-12 14:03:17,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:03:17,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-12 14:03:17,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:17,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:03:17,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 14:03:17,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 14:03:17,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:17,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:17,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:17,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:17,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:17,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:17,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:17,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:17,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:17,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:17,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:17,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:17,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:17,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:17,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:03:17,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:17,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:17,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:17,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:17,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:17,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:17,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:17,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:03:17,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:17,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:17,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:17,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:17,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:17,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:17,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:17,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:17,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:17,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:17,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:17,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:17,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:17,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:17,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:17,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:17,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:17,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:17,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:17,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:03:17,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:17,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:17,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:17,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:17,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:17,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:17,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:17,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:17,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:17,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:03:17,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:17,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:17,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:18,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:03:18,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:18,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:18,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:03:18,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:18,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:18,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:18,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:18,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:18,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:18,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:18,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:03:18,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:18,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 14:03:18,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:03:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 14:03:18,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:18,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 14:03:18,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 14:03:18,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4943 backedges. 1241 proven. 55 refuted. 0 times theorem prover too weak. 3647 trivial. 0 not checked. [2020-10-12 14:03:18,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474628855] [2020-10-12 14:03:18,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:18,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:03:18,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728910737] [2020-10-12 14:03:18,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:03:18,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:18,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:03:18,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:03:18,826 INFO L87 Difference]: Start difference. First operand 4903 states and 5360 transitions. Second operand 7 states. [2020-10-12 14:03:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:20,194 INFO L93 Difference]: Finished difference Result 10512 states and 11526 transitions. [2020-10-12 14:03:20,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:03:20,198 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1255 [2020-10-12 14:03:20,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:20,208 INFO L225 Difference]: With dead ends: 10512 [2020-10-12 14:03:20,208 INFO L226 Difference]: Without dead ends: 5797 [2020-10-12 14:03:20,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:03:20,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5797 states. [2020-10-12 14:03:20,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5797 to 5540. [2020-10-12 14:03:20,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5540 states. [2020-10-12 14:03:20,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5540 states to 5540 states and 6069 transitions. [2020-10-12 14:03:20,303 INFO L78 Accepts]: Start accepts. Automaton has 5540 states and 6069 transitions. Word has length 1255 [2020-10-12 14:03:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:20,304 INFO L479 AbstractCegarLoop]: Abstraction has 5540 states and 6069 transitions. [2020-10-12 14:03:20,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:03:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5540 states and 6069 transitions. [2020-10-12 14:03:20,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1486 [2020-10-12 14:03:20,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:20,336 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:20,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 14:03:20,336 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:20,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:20,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1223057282, now seen corresponding path program 1 times [2020-10-12 14:03:20,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:20,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474844905] [2020-10-12 14:03:20,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:20,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:20,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:23,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:23,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1517 [2020-10-12 14:03:25,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:03:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5094 [2020-10-12 14:03:25,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:03:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 14:03:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-12 14:03:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:25,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:25,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:25,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:25,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:25,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:25,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:25,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:25,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:25,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:25,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:25,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:25,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:25,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:25,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:25,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:25,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:25,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:25,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:25,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:25,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:03:25,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:25,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:25,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:25,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:25,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:25,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:03:25,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:25,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:25,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:25,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:26,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:03:26,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:26,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:03:26,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:26,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:26,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:26,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:03:26,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:26,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:03:26,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:26,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:03:26,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:26,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 14:03:26,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:03:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:26,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:26,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 14:03:26,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:26,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:26,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 14:03:26,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 14:03:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:03:26,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 14:03:26,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:26,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:26,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:03:26,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2020-10-12 14:03:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 14:03:26,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:03:26,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 14:03:26,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:27,612 INFO L134 CoverageAnalysis]: Checked inductivity of 7238 backedges. 2507 proven. 186 refuted. 0 times theorem prover too weak. 4545 trivial. 0 not checked. [2020-10-12 14:03:27,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474844905] [2020-10-12 14:03:27,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:27,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:03:27,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742944339] [2020-10-12 14:03:27,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:03:27,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:27,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:03:27,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:03:27,614 INFO L87 Difference]: Start difference. First operand 5540 states and 6069 transitions. Second operand 7 states. [2020-10-12 14:03:29,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:29,527 INFO L93 Difference]: Finished difference Result 11436 states and 12512 transitions. [2020-10-12 14:03:29,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:03:29,528 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1485 [2020-10-12 14:03:29,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:29,538 INFO L225 Difference]: With dead ends: 11436 [2020-10-12 14:03:29,539 INFO L226 Difference]: Without dead ends: 6084 [2020-10-12 14:03:29,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 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 14:03:29,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2020-10-12 14:03:29,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 5724. [2020-10-12 14:03:29,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5724 states. [2020-10-12 14:03:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 6247 transitions. [2020-10-12 14:03:29,631 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 6247 transitions. Word has length 1485 [2020-10-12 14:03:29,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:29,632 INFO L479 AbstractCegarLoop]: Abstraction has 5724 states and 6247 transitions. [2020-10-12 14:03:29,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:03:29,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 6247 transitions. [2020-10-12 14:03:29,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1551 [2020-10-12 14:03:29,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:29,658 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 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, 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 14:03:29,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 14:03:29,658 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:29,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:29,659 INFO L82 PathProgramCache]: Analyzing trace with hash -370777409, now seen corresponding path program 1 times [2020-10-12 14:03:29,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:29,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332139101] [2020-10-12 14:03:29,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:30,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:30,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:32,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:32,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:32,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1582 [2020-10-12 14:03:32,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:03:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2554 [2020-10-12 14:03:32,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:03:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-12 14:03:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 14:03:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:32,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:32,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:32,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:32,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:32,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:32,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:03:32,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:32,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:32,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:32,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:32,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:32,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:32,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:32,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:32,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:32,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:03:32,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:32,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:32,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:32,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:32,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:32,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:32,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:32,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:32,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:32,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:32,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:03:32,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:32,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:32,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:32,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:32,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:32,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:32,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:32,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:03:32,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:32,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:32,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:32,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:32,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:32,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:32,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:32,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:32,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:32,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:32,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:32,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:32,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:32,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:32,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:32,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:32,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:32,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:32,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:32,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:32,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:32,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:03:32,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:32,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:32,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:32,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:32,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:32,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:32,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:32,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:32,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:32,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:32,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:32,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:33,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:33,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:03:33,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:33,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:33,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:33,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:33,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:33,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:03:33,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:33,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:03:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:33,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:03:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 14:03:33,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 14:03:33,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-12 14:03:33,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:33,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-12 14:03:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 14:03:33,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 14:03:33,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 14:03:33,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:34,415 INFO L134 CoverageAnalysis]: Checked inductivity of 7386 backedges. 1525 proven. 57 refuted. 0 times theorem prover too weak. 5804 trivial. 0 not checked. [2020-10-12 14:03:34,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332139101] [2020-10-12 14:03:34,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:34,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:03:34,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524305187] [2020-10-12 14:03:34,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:03:34,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:34,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:03:34,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:03:34,418 INFO L87 Difference]: Start difference. First operand 5724 states and 6247 transitions. Second operand 6 states. [2020-10-12 14:03:35,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:35,622 INFO L93 Difference]: Finished difference Result 12180 states and 13364 transitions. [2020-10-12 14:03:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:03:35,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1550 [2020-10-12 14:03:35,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:35,634 INFO L225 Difference]: With dead ends: 12180 [2020-10-12 14:03:35,634 INFO L226 Difference]: Without dead ends: 6644 [2020-10-12 14:03:35,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:03:35,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6644 states. [2020-10-12 14:03:35,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6644 to 6276. [2020-10-12 14:03:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6276 states. [2020-10-12 14:03:35,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6276 states to 6276 states and 6855 transitions. [2020-10-12 14:03:35,711 INFO L78 Accepts]: Start accepts. Automaton has 6276 states and 6855 transitions. Word has length 1550 [2020-10-12 14:03:35,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:35,712 INFO L479 AbstractCegarLoop]: Abstraction has 6276 states and 6855 transitions. [2020-10-12 14:03:35,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:03:35,713 INFO L276 IsEmpty]: Start isEmpty. Operand 6276 states and 6855 transitions. [2020-10-12 14:03:35,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1616 [2020-10-12 14:03:35,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:35,733 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:35,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 14:03:35,734 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:35,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:35,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1059127270, now seen corresponding path program 1 times [2020-10-12 14:03:35,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:35,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473714528] [2020-10-12 14:03:35,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:36,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:36,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:37,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:38,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking...