/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/Problem18_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:57:39,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:57:39,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:57:39,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:57:39,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:57:39,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:57:39,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:57:39,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:57:39,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:57:39,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:57:39,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:57:39,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:57:39,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:57:39,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:57:39,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:57:39,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:57:39,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:57:39,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:57:39,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:57:39,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:57:39,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:57:39,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:57:39,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:57:39,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:57:39,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:57:39,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:57:39,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:57:39,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:57:39,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:57:39,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:57:39,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:57:39,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:57:39,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:57:39,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:57:39,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:57:39,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:57:39,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:57:39,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:57:39,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:57:39,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:57:39,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:57:39,918 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 14:57:39,940 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:57:39,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:57:39,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:57:39,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:57:39,942 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:57:39,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:57:39,943 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:57:39,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:57:39,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:57:39,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:57:39,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:57:39,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:57:39,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:57:39,944 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:57:39,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:57:39,944 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:57:39,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:57:39,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:57:39,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:57:39,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:57:39,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:57:39,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:57:39,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:57:39,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:57:39,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:57:39,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:57:39,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:57:39,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:57:39,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:57:39,947 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 14:57:40,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:57:40,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:57:40,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:57:40,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:57:40,298 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:57:40,299 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label15.c [2020-10-12 14:57:40,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3720fb0bc/3c601b0354404f19af55487b247d3b41/FLAGb5d6b80f3 [2020-10-12 14:57:41,103 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:57:41,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label15.c [2020-10-12 14:57:41,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3720fb0bc/3c601b0354404f19af55487b247d3b41/FLAGb5d6b80f3 [2020-10-12 14:57:41,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3720fb0bc/3c601b0354404f19af55487b247d3b41 [2020-10-12 14:57:41,216 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:57:41,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:57:41,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:57:41,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:57:41,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:57:41,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:57:41" (1/1) ... [2020-10-12 14:57:41,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db9ac37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:41, skipping insertion in model container [2020-10-12 14:57:41,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:57:41" (1/1) ... [2020-10-12 14:57:41,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:57:41,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:57:42,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:57:42,664 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:57:43,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:57:43,184 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:57:43,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:43 WrapperNode [2020-10-12 14:57:43,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:57:43,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:57:43,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:57:43,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:57:43,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:43" (1/1) ... [2020-10-12 14:57:43,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:43" (1/1) ... [2020-10-12 14:57:43,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:43" (1/1) ... [2020-10-12 14:57:43,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:43" (1/1) ... [2020-10-12 14:57:43,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:43" (1/1) ... [2020-10-12 14:57:43,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:43" (1/1) ... [2020-10-12 14:57:43,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:43" (1/1) ... [2020-10-12 14:57:43,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:57:43,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:57:43,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:57:43,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:57:43,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:43" (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 14:57:43,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:57:43,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:57:43,584 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:57:43,585 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:57:43,585 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 14:57:43,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:57:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:57:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:57:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 14:57:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:57:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:57:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:57:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:57:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:57:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:57:49,630 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:57:49,631 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:57:49,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:57:49 BoogieIcfgContainer [2020-10-12 14:57:49,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:57:49,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:57:49,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:57:49,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:57:49,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:57:41" (1/3) ... [2020-10-12 14:57:49,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706e058f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:57:49, skipping insertion in model container [2020-10-12 14:57:49,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:43" (2/3) ... [2020-10-12 14:57:49,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706e058f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:57:49, skipping insertion in model container [2020-10-12 14:57:49,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:57:49" (3/3) ... [2020-10-12 14:57:49,650 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label15.c [2020-10-12 14:57:49,662 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:57:49,671 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:57:49,686 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:57:49,716 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:57:49,716 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:57:49,717 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:57:49,717 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:57:49,717 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:57:49,717 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:57:49,717 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:57:49,717 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:57:49,751 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 14:57:49,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 14:57:49,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:57:49,761 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] [2020-10-12 14:57:49,761 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:57:49,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:57:49,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1584923938, now seen corresponding path program 1 times [2020-10-12 14:57:49,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:57:49,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777185852] [2020-10-12 14:57:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:57:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:49,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:50,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:50,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 14:57:50,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:50,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-10-12 14:57:50,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:57:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:57:50,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 14:57:50,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 14:57:50,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:57:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:50,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:50,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:50,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:57:50,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:50,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:57:50,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:50,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:57:50,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:50,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:57:50,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:57:50,488 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 14:57:50,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777185852] [2020-10-12 14:57:50,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:57:50,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:57:50,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602045807] [2020-10-12 14:57:50,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:57:50,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:57:50,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:57:50,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:57:50,517 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-12 14:58:00,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:00,798 INFO L93 Difference]: Finished difference Result 2286 states and 4364 transitions. [2020-10-12 14:58:00,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:58:00,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-12 14:58:00,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:00,828 INFO L225 Difference]: With dead ends: 2286 [2020-10-12 14:58:00,829 INFO L226 Difference]: Without dead ends: 1432 [2020-10-12 14:58:00,838 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 14:58:00,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-12 14:58:00,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1428. [2020-10-12 14:58:00,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-10-12 14:58:00,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2262 transitions. [2020-10-12 14:58:00,988 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2262 transitions. Word has length 41 [2020-10-12 14:58:00,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:00,989 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 2262 transitions. [2020-10-12 14:58:00,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:58:00,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2262 transitions. [2020-10-12 14:58:00,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-12 14:58:00,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:00,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:58:00,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:58:00,996 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:00,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:00,996 INFO L82 PathProgramCache]: Analyzing trace with hash 898324231, now seen corresponding path program 1 times [2020-10-12 14:58:00,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:00,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823834455] [2020-10-12 14:58:00,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:01,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:01,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:01,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:01,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-12 14:58:01,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:58:01,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 859 [2020-10-12 14:58:01,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:01,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:58:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:58:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:58:01,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:58:01,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:01,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:01,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:01,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:01,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:01,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:58:01,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:01,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:01,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:01,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:58:01,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:01,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:02,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:02,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:02,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:58:02,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:02,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-12 14:58:02,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:02,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:58:02,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-12 14:58:02,322 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:58:02,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823834455] [2020-10-12 14:58:02,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:58:02,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:58:02,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594462077] [2020-10-12 14:58:02,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:58:02,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:02,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:58:02,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:58:02,328 INFO L87 Difference]: Start difference. First operand 1428 states and 2262 transitions. Second operand 7 states. [2020-10-12 14:58:11,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:11,349 INFO L93 Difference]: Finished difference Result 4367 states and 6947 transitions. [2020-10-12 14:58:11,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:58:11,349 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-12 14:58:11,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:11,367 INFO L225 Difference]: With dead ends: 4367 [2020-10-12 14:58:11,367 INFO L226 Difference]: Without dead ends: 2945 [2020-10-12 14:58:11,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:58:11,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2020-10-12 14:58:11,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2894. [2020-10-12 14:58:11,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2894 states. [2020-10-12 14:58:11,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 3902 transitions. [2020-10-12 14:58:11,460 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 3902 transitions. Word has length 110 [2020-10-12 14:58:11,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:11,460 INFO L479 AbstractCegarLoop]: Abstraction has 2894 states and 3902 transitions. [2020-10-12 14:58:11,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:58:11,460 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 3902 transitions. [2020-10-12 14:58:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-12 14:58:11,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:11,467 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:58:11,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:58:11,467 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:11,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:11,468 INFO L82 PathProgramCache]: Analyzing trace with hash -2103811493, now seen corresponding path program 1 times [2020-10-12 14:58:11,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:11,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345756631] [2020-10-12 14:58:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:11,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:11,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:12,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:15,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:15,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:58:15,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:58:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4122 [2020-10-12 14:58:15,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:58:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:58:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:58:15,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:15,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:15,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:15,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:15,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:15,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:15,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:58:15,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:15,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:58:15,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:15,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:15,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:16,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:16,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 14:58:16,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:16,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-12 14:58:16,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:16,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:16,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 14:58:16,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:16,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 14:58:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:16,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:16,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:16,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:58:16,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:16,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:58:16,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:16,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:16,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 14:58:16,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:16,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:16,602 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 68 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:58:16,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345756631] [2020-10-12 14:58:16,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:16,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:58:16,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394014036] [2020-10-12 14:58:16,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:58:16,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:16,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:58:16,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:58:16,607 INFO L87 Difference]: Start difference. First operand 2894 states and 3902 transitions. Second operand 7 states. [2020-10-12 14:58:24,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:24,503 INFO L93 Difference]: Finished difference Result 6614 states and 8700 transitions. [2020-10-12 14:58:24,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:58:24,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-10-12 14:58:24,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:24,524 INFO L225 Difference]: With dead ends: 6614 [2020-10-12 14:58:24,524 INFO L226 Difference]: Without dead ends: 3726 [2020-10-12 14:58:24,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:58:24,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2020-10-12 14:58:24,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3641. [2020-10-12 14:58:24,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3641 states. [2020-10-12 14:58:24,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3641 states to 3641 states and 4675 transitions. [2020-10-12 14:58:24,630 INFO L78 Accepts]: Start accepts. Automaton has 3641 states and 4675 transitions. Word has length 232 [2020-10-12 14:58:24,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:24,631 INFO L479 AbstractCegarLoop]: Abstraction has 3641 states and 4675 transitions. [2020-10-12 14:58:24,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:58:24,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3641 states and 4675 transitions. [2020-10-12 14:58:24,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-10-12 14:58:24,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:24,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:58:24,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:58:24,639 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:24,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:24,640 INFO L82 PathProgramCache]: Analyzing trace with hash -9692651, now seen corresponding path program 1 times [2020-10-12 14:58:24,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:24,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776450665] [2020-10-12 14:58:24,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:24,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:24,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:25,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:28,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:28,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-12 14:58:28,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:58:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3514 [2020-10-12 14:58:28,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 14:58:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:58:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 354 [2020-10-12 14:58:28,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:58:28,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:28,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:28,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:28,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:28,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:28,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:58:28,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:58:28,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:28,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:28,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:28,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:29,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:29,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:58:29,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:58:29,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 685 [2020-10-12 14:58:29,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:58:29,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:29,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 14:58:29,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:29,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:29,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:29,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:29,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:58:29,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:29,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:58:29,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:29,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:29,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:29,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 14:58:29,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:58:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 14:58:29,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776450665] [2020-10-12 14:58:29,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:29,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:58:29,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920801224] [2020-10-12 14:58:29,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:58:29,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:29,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:58:29,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:58:29,613 INFO L87 Difference]: Start difference. First operand 3641 states and 4675 transitions. Second operand 6 states. [2020-10-12 14:58:39,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:39,107 INFO L93 Difference]: Finished difference Result 9582 states and 12828 transitions. [2020-10-12 14:58:39,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:58:39,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 348 [2020-10-12 14:58:39,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:39,151 INFO L225 Difference]: With dead ends: 9582 [2020-10-12 14:58:39,151 INFO L226 Difference]: Without dead ends: 6649 [2020-10-12 14:58:39,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 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 14:58:39,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6649 states. [2020-10-12 14:58:39,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6649 to 5859. [2020-10-12 14:58:39,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5859 states. [2020-10-12 14:58:39,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 7488 transitions. [2020-10-12 14:58:39,316 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 7488 transitions. Word has length 348 [2020-10-12 14:58:39,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:39,319 INFO L479 AbstractCegarLoop]: Abstraction has 5859 states and 7488 transitions. [2020-10-12 14:58:39,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:58:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 7488 transitions. [2020-10-12 14:58:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2020-10-12 14:58:39,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:39,328 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:58:39,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:58:39,329 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:39,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:39,329 INFO L82 PathProgramCache]: Analyzing trace with hash -88482313, now seen corresponding path program 1 times [2020-10-12 14:58:39,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:39,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168604711] [2020-10-12 14:58:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:39,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:39,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:40,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:40,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:43,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:43,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 436 [2020-10-12 14:58:43,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:58:43,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3622 [2020-10-12 14:58:43,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:43,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:43,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 395 [2020-10-12 14:58:43,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 14:58:43,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:43,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:43,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:43,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:43,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:43,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:43,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:58:43,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:43,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:43,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:43,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:43,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:43,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 14:58:43,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:43,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:58:43,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:43,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:43,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:43,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:58:43,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-12 14:58:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:43,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:43,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:43,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 14:58:43,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:43,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:58:43,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:43,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:43,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-12 14:58:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:43,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:43,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:43,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:58:43,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:43,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:58:43,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 14:58:43,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:58:43,678 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2020-10-12 14:58:43,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168604711] [2020-10-12 14:58:43,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:43,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:58:43,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034053368] [2020-10-12 14:58:43,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:58:43,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:43,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:58:43,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:58:43,682 INFO L87 Difference]: Start difference. First operand 5859 states and 7488 transitions. Second operand 5 states. [2020-10-12 14:58:52,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:52,351 INFO L93 Difference]: Finished difference Result 13890 states and 18673 transitions. [2020-10-12 14:58:52,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:58:52,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 422 [2020-10-12 14:58:52,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:52,397 INFO L225 Difference]: With dead ends: 13890 [2020-10-12 14:58:52,397 INFO L226 Difference]: Without dead ends: 8739 [2020-10-12 14:58:52,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 14:58:52,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8739 states. [2020-10-12 14:58:52,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8739 to 8713. [2020-10-12 14:58:52,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8713 states. [2020-10-12 14:58:52,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8713 states to 8713 states and 10830 transitions. [2020-10-12 14:58:52,625 INFO L78 Accepts]: Start accepts. Automaton has 8713 states and 10830 transitions. Word has length 422 [2020-10-12 14:58:52,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:52,627 INFO L479 AbstractCegarLoop]: Abstraction has 8713 states and 10830 transitions. [2020-10-12 14:58:52,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:58:52,627 INFO L276 IsEmpty]: Start isEmpty. Operand 8713 states and 10830 transitions. [2020-10-12 14:58:52,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2020-10-12 14:58:52,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:52,638 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:58:52,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:58:52,638 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:52,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:52,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1472307804, now seen corresponding path program 1 times [2020-10-12 14:58:52,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:52,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501146463] [2020-10-12 14:58:52,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:52,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:53,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:54,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:57,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:57,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 451 [2020-10-12 14:58:57,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:58:57,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-12 14:58:57,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:57,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 14:58:57,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:58:57,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 406 [2020-10-12 14:58:57,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:58:57,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:57,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:57,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:57,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:57,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:57,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:58:57,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:57,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:57,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:57,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:58:57,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:57,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:58,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:58,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:58,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:58,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:58:58,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:58:58,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-10-12 14:58:58,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:58:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 14:58:58,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:58,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:58,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:58,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:58,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:58:58,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:58,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:58:58,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:58,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 14:58:58,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:59,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 14:58:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:59,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:59,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:59,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 14:58:59,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:59,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 14:58:59,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 14:58:59,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-12 14:58:59,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501146463] [2020-10-12 14:58:59,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:59,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:58:59,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142262209] [2020-10-12 14:58:59,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:58:59,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:59,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:58:59,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:58:59,489 INFO L87 Difference]: Start difference. First operand 8713 states and 10830 transitions. Second operand 8 states. [2020-10-12 14:59:08,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:08,194 INFO L93 Difference]: Finished difference Result 19693 states and 24714 transitions. [2020-10-12 14:59:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:59:08,196 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 437 [2020-10-12 14:59:08,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:08,235 INFO L225 Difference]: With dead ends: 19693 [2020-10-12 14:59:08,235 INFO L226 Difference]: Without dead ends: 11688 [2020-10-12 14:59:08,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:59:08,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11688 states. [2020-10-12 14:59:08,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11688 to 11651. [2020-10-12 14:59:08,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11651 states. [2020-10-12 14:59:08,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11651 states to 11651 states and 14043 transitions. [2020-10-12 14:59:08,459 INFO L78 Accepts]: Start accepts. Automaton has 11651 states and 14043 transitions. Word has length 437 [2020-10-12 14:59:08,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:08,460 INFO L479 AbstractCegarLoop]: Abstraction has 11651 states and 14043 transitions. [2020-10-12 14:59:08,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:59:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states and 14043 transitions. [2020-10-12 14:59:08,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2020-10-12 14:59:08,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:08,469 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:08,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:59:08,470 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:08,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:08,470 INFO L82 PathProgramCache]: Analyzing trace with hash 2036927022, now seen corresponding path program 1 times [2020-10-12 14:59:08,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:08,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360897263] [2020-10-12 14:59:08,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:08,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:08,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:09,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:09,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:09,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 457 [2020-10-12 14:59:13,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:59:13,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4489 [2020-10-12 14:59:13,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:13,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-12 14:59:13,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 14:59:13,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:13,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:13,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:13,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:59:13,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:13,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:13,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:13,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:13,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 14:59:13,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:13,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:59:13,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:13,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:13,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:13,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-12 14:59:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:13,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 14:59:13,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:13,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-12 14:59:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:13,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 14:59:13,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:13,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 14:59:13,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 14:59:13,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2020-10-12 14:59:13,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360897263] [2020-10-12 14:59:13,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:59:13,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:59:13,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744201746] [2020-10-12 14:59:13,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:59:13,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:13,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:59:13,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:59:13,619 INFO L87 Difference]: Start difference. First operand 11651 states and 14043 transitions. Second operand 5 states. [2020-10-12 14:59:21,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:21,624 INFO L93 Difference]: Finished difference Result 22649 states and 27433 transitions. [2020-10-12 14:59:21,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:59:21,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 443 [2020-10-12 14:59:21,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:21,667 INFO L225 Difference]: With dead ends: 22649 [2020-10-12 14:59:21,667 INFO L226 Difference]: Without dead ends: 11674 [2020-10-12 14:59:21,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:59:21,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11674 states. [2020-10-12 14:59:21,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11674 to 11651. [2020-10-12 14:59:21,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11651 states. [2020-10-12 14:59:21,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11651 states to 11651 states and 14041 transitions. [2020-10-12 14:59:21,903 INFO L78 Accepts]: Start accepts. Automaton has 11651 states and 14041 transitions. Word has length 443 [2020-10-12 14:59:21,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:21,904 INFO L479 AbstractCegarLoop]: Abstraction has 11651 states and 14041 transitions. [2020-10-12 14:59:21,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:59:21,904 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states and 14041 transitions. [2020-10-12 14:59:21,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2020-10-12 14:59:21,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:21,913 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:21,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:59:21,913 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:21,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:21,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1611433748, now seen corresponding path program 1 times [2020-10-12 14:59:21,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:21,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140889591] [2020-10-12 14:59:21,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:22,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:22,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:22,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:27,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:27,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 459 [2020-10-12 14:59:27,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:59:27,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-12 14:59:27,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:27,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:59:27,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:59:27,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-12 14:59:27,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:27,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:27,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:27,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:27,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:27,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:27,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:59:27,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:27,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:27,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:27,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:59:27,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:27,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:27,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:27,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:27,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:59:27,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:27,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-12 14:59:27,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:27,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:59:27,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:27,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 14:59:27,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:27,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:27,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:27,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:27,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:59:27,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:59:27,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:59:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 14:59:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:27,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 14:59:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:27,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:27,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:27,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:59:27,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:27,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:59:27,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 14:59:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:27,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 68 proven. 92 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:59:27,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140889591] [2020-10-12 14:59:27,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:59:27,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:59:27,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912303142] [2020-10-12 14:59:27,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:59:27,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:27,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:59:27,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:59:27,918 INFO L87 Difference]: Start difference. First operand 11651 states and 14041 transitions. Second operand 7 states. [2020-10-12 14:59:39,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:39,956 INFO L93 Difference]: Finished difference Result 33004 states and 40901 transitions. [2020-10-12 14:59:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:59:39,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 445 [2020-10-12 14:59:39,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:40,045 INFO L225 Difference]: With dead ends: 33004 [2020-10-12 14:59:40,046 INFO L226 Difference]: Without dead ends: 22061 [2020-10-12 14:59:40,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 14:59:40,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22061 states. [2020-10-12 14:59:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22061 to 21299. [2020-10-12 14:59:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21299 states. [2020-10-12 14:59:40,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21299 states to 21299 states and 25728 transitions. [2020-10-12 14:59:40,476 INFO L78 Accepts]: Start accepts. Automaton has 21299 states and 25728 transitions. Word has length 445 [2020-10-12 14:59:40,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:40,477 INFO L479 AbstractCegarLoop]: Abstraction has 21299 states and 25728 transitions. [2020-10-12 14:59:40,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:59:40,477 INFO L276 IsEmpty]: Start isEmpty. Operand 21299 states and 25728 transitions. [2020-10-12 14:59:40,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2020-10-12 14:59:40,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:40,486 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:59:40,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:59:40,487 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:40,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:40,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1520318970, now seen corresponding path program 1 times [2020-10-12 14:59:40,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:40,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745738415] [2020-10-12 14:59:40,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:40,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:40,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:41,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:41,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:42,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:45,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:45,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 517 [2020-10-12 14:59:45,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:59:45,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 14:59:45,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-12 14:59:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 14:59:45,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:45,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:45,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:45,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:45,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:45,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:45,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:59:45,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:45,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:45,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:45,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:45,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:45,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:45,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 14:59:45,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:45,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:59:45,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:45,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:45,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-12 14:59:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:45,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:45,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:45,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 14:59:45,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:45,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:59:45,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:45,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:45,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:45,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:45,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:45,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-12 14:59:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:45,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:45,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:45,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:59:45,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:45,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:59:45,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:45,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:45,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:45,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:45,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:45,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2020-10-12 14:59:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:45,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:46,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:46,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 14:59:46,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:46,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:59:46,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:59:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:46,208 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 141 proven. 4 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2020-10-12 14:59:46,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745738415] [2020-10-12 14:59:46,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:59:46,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:59:46,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681784152] [2020-10-12 14:59:46,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:59:46,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:46,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:59:46,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:59:46,217 INFO L87 Difference]: Start difference. First operand 21299 states and 25728 transitions. Second operand 5 states. [2020-10-12 15:00:00,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:00,817 INFO L93 Difference]: Finished difference Result 47599 states and 57988 transitions. [2020-10-12 15:00:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:00:00,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 501 [2020-10-12 15:00:00,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:00,901 INFO L225 Difference]: With dead ends: 47599 [2020-10-12 15:00:00,902 INFO L226 Difference]: Without dead ends: 27718 [2020-10-12 15:00:00,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 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 15:00:00,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27718 states. [2020-10-12 15:00:01,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27718 to 27006. [2020-10-12 15:00:01,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27006 states. [2020-10-12 15:00:01,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27006 states to 27006 states and 32363 transitions. [2020-10-12 15:00:01,444 INFO L78 Accepts]: Start accepts. Automaton has 27006 states and 32363 transitions. Word has length 501 [2020-10-12 15:00:01,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:01,445 INFO L479 AbstractCegarLoop]: Abstraction has 27006 states and 32363 transitions. [2020-10-12 15:00:01,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:00:01,446 INFO L276 IsEmpty]: Start isEmpty. Operand 27006 states and 32363 transitions. [2020-10-12 15:00:01,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2020-10-12 15:00:01,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:01,456 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:00:01,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:00:01,457 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:01,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:01,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1543958721, now seen corresponding path program 1 times [2020-10-12 15:00:01,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:01,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207196933] [2020-10-12 15:00:01,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:01,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:01,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:01,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:02,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:02,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:02,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:06,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:06,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 526 [2020-10-12 15:00:06,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 15:00:06,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-12 15:00:06,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:06,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:06,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 15:00:06,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 15:00:06,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:06,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:06,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:06,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:06,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:06,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:06,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:06,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:06,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:06,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:06,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:06,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:06,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:06,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:06,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:06,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 15:00:06,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:06,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 15:00:06,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:06,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:06,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:06,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-12 15:00:06,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:06,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-12 15:00:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:06,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:06,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:06,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:06,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:00:06,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:00:06,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-12 15:00:06,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:00:06,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:07,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-12 15:00:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:07,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:07,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:07,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 15:00:07,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:07,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 15:00:07,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:07,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:07,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 15:00:07,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:07,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:07,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2020-10-12 15:00:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:07,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:07,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:07,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:00:07,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:07,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:00:07,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:07,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:07,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-12 15:00:07,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:07,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:07,382 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 263 proven. 157 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2020-10-12 15:00:07,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207196933] [2020-10-12 15:00:07,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:07,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:00:07,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881610580] [2020-10-12 15:00:07,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:00:07,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:07,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:00:07,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:00:07,385 INFO L87 Difference]: Start difference. First operand 27006 states and 32363 transitions. Second operand 7 states. [2020-10-12 15:00:16,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:16,474 INFO L93 Difference]: Finished difference Result 52948 states and 64003 transitions. [2020-10-12 15:00:16,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:00:16,475 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 510 [2020-10-12 15:00:16,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:16,548 INFO L225 Difference]: With dead ends: 52948 [2020-10-12 15:00:16,548 INFO L226 Difference]: Without dead ends: 26981 [2020-10-12 15:00:16,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 15:00:16,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26981 states. [2020-10-12 15:00:16,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26981 to 26937. [2020-10-12 15:00:16,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26937 states. [2020-10-12 15:00:17,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26937 states to 26937 states and 30306 transitions. [2020-10-12 15:00:17,033 INFO L78 Accepts]: Start accepts. Automaton has 26937 states and 30306 transitions. Word has length 510 [2020-10-12 15:00:17,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:17,033 INFO L479 AbstractCegarLoop]: Abstraction has 26937 states and 30306 transitions. [2020-10-12 15:00:17,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:00:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand 26937 states and 30306 transitions. [2020-10-12 15:00:17,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 998 [2020-10-12 15:00:17,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:17,050 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:17,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:00:17,051 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:17,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:17,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1852201048, now seen corresponding path program 1 times [2020-10-12 15:00:17,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:17,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528567550] [2020-10-12 15:00:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:17,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:17,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:19,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:19,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1017 [2020-10-12 15:00:19,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:00:19,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2556 [2020-10-12 15:00:19,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:00:19,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 15:00:19,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:19,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:19,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:19,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:19,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:19,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:19,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:00:19,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:19,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:19,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:19,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:19,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:19,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:19,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:20,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:20,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:20,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:20,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 15:00:20,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:20,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:20,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:20,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:20,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:20,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:20,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:20,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:00:20,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:20,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:20,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:20,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:20,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:20,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:20,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:20,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:20,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:20,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:20,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:20,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:20,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:20,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:00:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:20,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:20,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:20,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:00:20,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:20,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 15:00:20,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:20,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:20,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:20,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:20,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:20,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:20,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:20,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:00:20,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:20,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:00:20,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:20,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:20,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:20,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:20,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:20,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:00:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:20,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:20,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:20,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:00:20,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:20,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-12 15:00:20,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:00:20,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-12 15:00:21,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528567550] [2020-10-12 15:00:21,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:21,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:00:21,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240104111] [2020-10-12 15:00:21,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:00:21,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:21,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:00:21,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:00:21,219 INFO L87 Difference]: Start difference. First operand 26937 states and 30306 transitions. Second operand 5 states. [2020-10-12 15:00:28,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:28,826 INFO L93 Difference]: Finished difference Result 52463 states and 59306 transitions. [2020-10-12 15:00:28,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:00:28,828 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 997 [2020-10-12 15:00:28,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:28,916 INFO L225 Difference]: With dead ends: 52463 [2020-10-12 15:00:28,917 INFO L226 Difference]: Without dead ends: 26944 [2020-10-12 15:00:28,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 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 15:00:28,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26944 states. [2020-10-12 15:00:29,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26944 to 26922. [2020-10-12 15:00:29,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26922 states. [2020-10-12 15:00:29,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26922 states to 26922 states and 29131 transitions. [2020-10-12 15:00:29,396 INFO L78 Accepts]: Start accepts. Automaton has 26922 states and 29131 transitions. Word has length 997 [2020-10-12 15:00:29,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:29,397 INFO L479 AbstractCegarLoop]: Abstraction has 26922 states and 29131 transitions. [2020-10-12 15:00:29,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:00:29,397 INFO L276 IsEmpty]: Start isEmpty. Operand 26922 states and 29131 transitions. [2020-10-12 15:00:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1159 [2020-10-12 15:00:29,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:29,423 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:29,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:00:29,424 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:29,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:29,424 INFO L82 PathProgramCache]: Analyzing trace with hash -352139871, now seen corresponding path program 1 times [2020-10-12 15:00:29,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:29,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770619718] [2020-10-12 15:00:29,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:29,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:29,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:30,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:31,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:32,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:34,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:34,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1182 [2020-10-12 15:00:34,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:00:34,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-12 15:00:34,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 15:00:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 15:00:34,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:34,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:34,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:34,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:34,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:34,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:34,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:00:34,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:34,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:34,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:34,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:34,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:34,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:34,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:34,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:34,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:34,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 15:00:34,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:34,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:34,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:34,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:34,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:34,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:34,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:35,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:35,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:35,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:35,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 15:00:35,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:35,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:35,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:35,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:35,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:35,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:35,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:35,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:00:35,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:35,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:35,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:35,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:35,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:35,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:00:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:35,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:35,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:35,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:00:35,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:35,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-12 15:00:35,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:35,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:35,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:35,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 15:00:35,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:35,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:35,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:35,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:35,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:00:35,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:35,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 15:00:35,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:35,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:35,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:35,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 15:00:35,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:35,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:00:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:35,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:35,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:35,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:00:35,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:35,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 15:00:35,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:00:35,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:35,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:00:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:35,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:35,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:35,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 15:00:35,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:35,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:00:35,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:35,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:35,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 15:00:35,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:35,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:35,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2020-10-12 15:00:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:35,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:35,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:35,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:00:35,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:35,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:00:35,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:35,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:35,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-12 15:00:35,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:35,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:37,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 432 proven. 157 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2020-10-12 15:00:37,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770619718] [2020-10-12 15:00:37,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:37,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:00:37,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402716471] [2020-10-12 15:00:37,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:00:37,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:37,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:00:37,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:00:37,144 INFO L87 Difference]: Start difference. First operand 26922 states and 29131 transitions. Second operand 7 states. [2020-10-12 15:00:49,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:49,452 INFO L93 Difference]: Finished difference Result 56051 states and 60759 transitions. [2020-10-12 15:00:49,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:00:49,454 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1158 [2020-10-12 15:00:49,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:49,538 INFO L225 Difference]: With dead ends: 56051 [2020-10-12 15:00:49,538 INFO L226 Difference]: Without dead ends: 30547 [2020-10-12 15:00:49,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 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 15:00:49,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30547 states. [2020-10-12 15:00:50,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30547 to 30500. [2020-10-12 15:00:50,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30500 states. [2020-10-12 15:00:50,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30500 states to 30500 states and 32850 transitions. [2020-10-12 15:00:50,060 INFO L78 Accepts]: Start accepts. Automaton has 30500 states and 32850 transitions. Word has length 1158 [2020-10-12 15:00:50,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:50,061 INFO L479 AbstractCegarLoop]: Abstraction has 30500 states and 32850 transitions. [2020-10-12 15:00:50,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:00:50,061 INFO L276 IsEmpty]: Start isEmpty. Operand 30500 states and 32850 transitions. [2020-10-12 15:00:50,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1166 [2020-10-12 15:00:50,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:50,092 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:50,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:00:50,093 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:50,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:50,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1839065735, now seen corresponding path program 1 times [2020-10-12 15:00:50,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:50,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594737328] [2020-10-12 15:00:50,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:50,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:50,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:51,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:52,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:52,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:55,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:55,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1189 [2020-10-12 15:00:55,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:00:55,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5078 [2020-10-12 15:00:55,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:55,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:55,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 856 [2020-10-12 15:00:55,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 15:00:55,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:55,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:55,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:55,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:55,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:55,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:55,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:00:55,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:55,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:55,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:55,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:55,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:55,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:55,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:55,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:55,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:55,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:55,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 15:00:55,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:55,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:55,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:55,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:55,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:55,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:55,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:55,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:55,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:55,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:55,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 15:00:55,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:55,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:55,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:55,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:55,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:55,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:55,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:55,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:55,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:55,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:55,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:55,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:55,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:56,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:00:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:56,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:56,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:56,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 15:00:56,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:56,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 15:00:56,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:56,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:56,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:56,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 308 [2020-10-12 15:00:56,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:56,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:56,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:56,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:56,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 15:00:56,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:56,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 15:00:56,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:56,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 15:00:56,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:56,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 15:00:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:56,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:56,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:56,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:00:56,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:56,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 15:00:56,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:00:56,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:56,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-12 15:00:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:56,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:56,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:56,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 15:00:56,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:56,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:00:56,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 15:00:56,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:56,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:56,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1044 [2020-10-12 15:00:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:56,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:56,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:56,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:00:56,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:56,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:00:56,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-12 15:00:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:56,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:57,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 432 proven. 157 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2020-10-12 15:00:57,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594737328] [2020-10-12 15:00:57,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:57,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:00:57,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340041308] [2020-10-12 15:00:57,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:00:57,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:57,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:00:57,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:00:57,310 INFO L87 Difference]: Start difference. First operand 30500 states and 32850 transitions. Second operand 7 states. [2020-10-12 15:01:08,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:08,747 INFO L93 Difference]: Finished difference Result 59736 states and 64504 transitions. [2020-10-12 15:01:08,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:01:08,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1165 [2020-10-12 15:01:08,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:08,837 INFO L225 Difference]: With dead ends: 59736 [2020-10-12 15:01:08,837 INFO L226 Difference]: Without dead ends: 30654 [2020-10-12 15:01:08,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 15:01:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30654 states. [2020-10-12 15:01:09,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30654 to 30591. [2020-10-12 15:01:09,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30591 states. [2020-10-12 15:01:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30591 states to 30591 states and 32965 transitions. [2020-10-12 15:01:09,388 INFO L78 Accepts]: Start accepts. Automaton has 30591 states and 32965 transitions. Word has length 1165 [2020-10-12 15:01:09,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:09,389 INFO L479 AbstractCegarLoop]: Abstraction has 30591 states and 32965 transitions. [2020-10-12 15:01:09,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:01:09,389 INFO L276 IsEmpty]: Start isEmpty. Operand 30591 states and 32965 transitions. [2020-10-12 15:01:09,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2020-10-12 15:01:09,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:09,417 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:09,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 15:01:09,417 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:09,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:09,418 INFO L82 PathProgramCache]: Analyzing trace with hash -148682908, now seen corresponding path program 1 times [2020-10-12 15:01:09,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:09,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107108774] [2020-10-12 15:01:09,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:01:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:09,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:10,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:10,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:11,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:14,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:14,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1223 [2020-10-12 15:01:14,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:01:14,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 15:01:14,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1182 [2020-10-12 15:01:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 15:01:14,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:14,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:01:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:14,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:14,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:14,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:01:14,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:14,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:14,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:14,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:14,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:01:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:14,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:14,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:14,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:01:14,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:14,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 15:01:14,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:14,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:14,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:14,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:01:15,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 15:01:15,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:01:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:01:15,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:15,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:01:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:01:15,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 15:01:15,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:01:15,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:01:15,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:01:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:01:15,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 15:01:15,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:01:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:01:15,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:01:15,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-12 15:01:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 15:01:15,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:01:15,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:15,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:15,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1076 [2020-10-12 15:01:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:15,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:15,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:15,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:01:15,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:15,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 15:01:15,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:01:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 15:01:15,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:16,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1602 backedges. 213 proven. 6 refuted. 0 times theorem prover too weak. 1383 trivial. 0 not checked. [2020-10-12 15:01:16,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107108774] [2020-10-12 15:01:16,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:01:16,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 15:01:16,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568937306] [2020-10-12 15:01:16,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:01:16,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:01:16,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:01:16,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:01:16,168 INFO L87 Difference]: Start difference. First operand 30591 states and 32965 transitions. Second operand 6 states.