/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/Problem16_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:34:39,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:34:39,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:34:39,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:34:39,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:34:39,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:34:39,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:34:39,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:34:39,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:34:39,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:34:39,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:34:39,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:34:39,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:34:39,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:34:39,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:34:39,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:34:39,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:34:39,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:34:39,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:34:39,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:34:39,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:34:39,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:34:39,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:34:39,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:34:39,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:34:39,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:34:39,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:34:39,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:34:39,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:34:39,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:34:39,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:34:39,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:34:39,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:34:39,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:34:39,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:34:39,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:34:39,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:34:39,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:34:39,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:34:39,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:34:39,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:34:39,407 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 14:34:39,457 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:34:39,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:34:39,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:34:39,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:34:39,463 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:34:39,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:34:39,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:34:39,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:34:39,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:34:39,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:34:39,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:34:39,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:34:39,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:34:39,467 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:34:39,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:34:39,467 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:34:39,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:34:39,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:34:39,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:34:39,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:34:39,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:34:39,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:34:39,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:34:39,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:34:39,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:34:39,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:34:39,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:34:39,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:34:39,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:34:39,471 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 14:34:39,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:34:39,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:34:39,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:34:39,857 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:34:39,860 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:34:39,861 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label51.c [2020-10-12 14:34:39,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2310e0fc/f9bb9d3bf28443b6916093cff3bead07/FLAGb890bb760 [2020-10-12 14:34:40,646 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:34:40,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label51.c [2020-10-12 14:34:40,673 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2310e0fc/f9bb9d3bf28443b6916093cff3bead07/FLAGb890bb760 [2020-10-12 14:34:40,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2310e0fc/f9bb9d3bf28443b6916093cff3bead07 [2020-10-12 14:34:40,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:34:40,778 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:34:40,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:34:40,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:34:40,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:34:40,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:34:40" (1/1) ... [2020-10-12 14:34:40,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a0aa91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:40, skipping insertion in model container [2020-10-12 14:34:40,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:34:40" (1/1) ... [2020-10-12 14:34:40,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:34:40,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:34:41,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:34:41,811 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:34:42,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:34:42,060 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:34:42,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:42 WrapperNode [2020-10-12 14:34:42,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:34:42,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:34:42,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:34:42,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:34:42,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:42" (1/1) ... [2020-10-12 14:34:42,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:42" (1/1) ... [2020-10-12 14:34:42,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:42" (1/1) ... [2020-10-12 14:34:42,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:42" (1/1) ... [2020-10-12 14:34:42,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:42" (1/1) ... [2020-10-12 14:34:42,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:42" (1/1) ... [2020-10-12 14:34:42,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:42" (1/1) ... [2020-10-12 14:34:42,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:34:42,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:34:42,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:34:42,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:34:42,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:42" (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 14:34:42,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:34:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:34:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:34:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:34:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:34:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:34:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:34:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:34:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:34:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:34:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:34:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:34:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:34:44,748 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:34:44,749 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:34:44,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:34:44 BoogieIcfgContainer [2020-10-12 14:34:44,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:34:44,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:34:44,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:34:44,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:34:44,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:34:40" (1/3) ... [2020-10-12 14:34:44,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae7fbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:34:44, skipping insertion in model container [2020-10-12 14:34:44,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:42" (2/3) ... [2020-10-12 14:34:44,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae7fbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:34:44, skipping insertion in model container [2020-10-12 14:34:44,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:34:44" (3/3) ... [2020-10-12 14:34:44,765 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label51.c [2020-10-12 14:34:44,775 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:34:44,783 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:34:44,797 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:34:44,823 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:34:44,823 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:34:44,824 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:34:44,824 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:34:44,824 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:34:44,824 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:34:44,824 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:34:44,824 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:34:44,850 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-12 14:34:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-12 14:34:44,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:44,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:34:44,858 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:44,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:44,864 INFO L82 PathProgramCache]: Analyzing trace with hash 848957365, now seen corresponding path program 1 times [2020-10-12 14:34:44,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:44,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778091324] [2020-10-12 14:34:44,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:45,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:45,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:45,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 14:34:45,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:45,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-12 14:34:45,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:45,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:34:45,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:34:45,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 14:34:45,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:34:45,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:45,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:45,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:45,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:45,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:45,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 14:34:45,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:45,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:45,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:45,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:34:45,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:45,472 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 14:34:45,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778091324] [2020-10-12 14:34:45,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:34:45,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:34:45,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445944285] [2020-10-12 14:34:45,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:34:45,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:45,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:34:45,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:34:45,510 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-12 14:34:49,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:49,097 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-12 14:34:49,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:34:49,099 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-12 14:34:49,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:49,123 INFO L225 Difference]: With dead ends: 1169 [2020-10-12 14:34:49,123 INFO L226 Difference]: Without dead ends: 696 [2020-10-12 14:34:49,135 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 14:34:49,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-12 14:34:49,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-12 14:34:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-12 14:34:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-12 14:34:49,293 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 20 [2020-10-12 14:34:49,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:49,294 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-12 14:34:49,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:34:49,294 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-12 14:34:49,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-12 14:34:49,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:49,310 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:34:49,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:34:49,311 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:49,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:49,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1953526824, now seen corresponding path program 1 times [2020-10-12 14:34:49,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:49,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339984759] [2020-10-12 14:34:49,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:49,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:49,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:50,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:50,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 14:34:50,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:34:50,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-10-12 14:34:50,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:34:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:34:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:34:50,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:50,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:50,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:50,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:50,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:50,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:34:50,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:34:50,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:50,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:50,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:50,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:50,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:34:50,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:50,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-12 14:34:50,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:34:50,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:50,664 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:34:50,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339984759] [2020-10-12 14:34:50,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:34:50,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:34:50,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733392872] [2020-10-12 14:34:50,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:34:50,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:50,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:34:50,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:34:50,669 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 7 states. [2020-10-12 14:34:54,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:54,695 INFO L93 Difference]: Finished difference Result 2088 states and 3100 transitions. [2020-10-12 14:34:54,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:34:54,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2020-10-12 14:34:54,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:54,709 INFO L225 Difference]: With dead ends: 2088 [2020-10-12 14:34:54,709 INFO L226 Difference]: Without dead ends: 1402 [2020-10-12 14:34:54,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:34:54,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2020-10-12 14:34:54,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1378. [2020-10-12 14:34:54,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2020-10-12 14:34:54,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1812 transitions. [2020-10-12 14:34:54,760 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1812 transitions. Word has length 96 [2020-10-12 14:34:54,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:54,761 INFO L479 AbstractCegarLoop]: Abstraction has 1378 states and 1812 transitions. [2020-10-12 14:34:54,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:34:54,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1812 transitions. [2020-10-12 14:34:54,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-12 14:34:54,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:54,768 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 14:34:54,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:34:54,769 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:54,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:54,769 INFO L82 PathProgramCache]: Analyzing trace with hash 2034977208, now seen corresponding path program 1 times [2020-10-12 14:34:54,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:54,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135926634] [2020-10-12 14:34:54,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:54,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:54,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:55,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:55,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:55,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:56,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:58,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:58,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-12 14:34:58,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:34:58,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3391 [2020-10-12 14:34:58,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:34:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:34:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-12 14:34:58,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:58,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:58,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:58,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:58,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:58,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:58,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:34:58,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:58,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:58,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:58,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:34:58,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:58,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:58,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:58,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:58,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:58,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:34:58,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:34:58,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-12 14:34:58,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:34:58,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:58,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:34:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:58,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:58,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:59,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:59,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:34:59,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:34:59,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-12 14:34:59,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:59,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:34:59,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:59,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 14:34:59,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:59,516 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-12 14:34:59,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135926634] [2020-10-12 14:34:59,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:34:59,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:34:59,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002592888] [2020-10-12 14:34:59,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 14:34:59,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:59,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 14:34:59,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:34:59,519 INFO L87 Difference]: Start difference. First operand 1378 states and 1812 transitions. Second operand 11 states. [2020-10-12 14:35:02,553 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-10-12 14:35:06,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:06,651 INFO L93 Difference]: Finished difference Result 3884 states and 5265 transitions. [2020-10-12 14:35:06,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:35:06,652 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 183 [2020-10-12 14:35:06,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:06,673 INFO L225 Difference]: With dead ends: 3884 [2020-10-12 14:35:06,673 INFO L226 Difference]: Without dead ends: 2512 [2020-10-12 14:35:06,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2020-10-12 14:35:06,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2020-10-12 14:35:06,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2423. [2020-10-12 14:35:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-10-12 14:35:06,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3239 transitions. [2020-10-12 14:35:06,774 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3239 transitions. Word has length 183 [2020-10-12 14:35:06,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:06,777 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 3239 transitions. [2020-10-12 14:35:06,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 14:35:06,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3239 transitions. [2020-10-12 14:35:06,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-12 14:35:06,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:06,792 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:35:06,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:35:06,792 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:06,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:06,793 INFO L82 PathProgramCache]: Analyzing trace with hash 488746209, now seen corresponding path program 1 times [2020-10-12 14:35:06,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:06,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660938798] [2020-10-12 14:35:06,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:06,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:07,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:07,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:08,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:08,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:08,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:11,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:11,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 361 [2020-10-12 14:35:11,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:35:11,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-12 14:35:11,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:11,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 14:35:11,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:35:11,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 337 [2020-10-12 14:35:11,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:12,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:12,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:12,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:12,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:12,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:12,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:35:12,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:12,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:35:12,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:35:12,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:12,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:12,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:12,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:12,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:35:12,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:35:12,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-12 14:35:12,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:35:12,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:12,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:35:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:12,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:12,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:12,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:12,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 14:35:12,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:35:12,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-12 14:35:12,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:12,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:12,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:12,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 14:35:12,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:12,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 14:35:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:12,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:12,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:12,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:35:12,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:12,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-12 14:35:12,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:12,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:12,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:12,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-12 14:35:12,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:13,029 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 127 proven. 98 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-12 14:35:13,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660938798] [2020-10-12 14:35:13,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:13,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:35:13,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026385408] [2020-10-12 14:35:13,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:35:13,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:13,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:35:13,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:35:13,033 INFO L87 Difference]: Start difference. First operand 2423 states and 3239 transitions. Second operand 8 states. [2020-10-12 14:35:16,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:16,996 INFO L93 Difference]: Finished difference Result 5563 states and 7821 transitions. [2020-10-12 14:35:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:35:16,998 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 347 [2020-10-12 14:35:16,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:17,018 INFO L225 Difference]: With dead ends: 5563 [2020-10-12 14:35:17,019 INFO L226 Difference]: Without dead ends: 3146 [2020-10-12 14:35:17,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:35:17,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2020-10-12 14:35:17,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3120. [2020-10-12 14:35:17,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3120 states. [2020-10-12 14:35:17,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 4212 transitions. [2020-10-12 14:35:17,117 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 4212 transitions. Word has length 347 [2020-10-12 14:35:17,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:17,120 INFO L479 AbstractCegarLoop]: Abstraction has 3120 states and 4212 transitions. [2020-10-12 14:35:17,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:35:17,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 4212 transitions. [2020-10-12 14:35:17,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2020-10-12 14:35:17,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:17,132 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:35:17,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:35:17,132 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:17,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:17,133 INFO L82 PathProgramCache]: Analyzing trace with hash -713219687, now seen corresponding path program 1 times [2020-10-12 14:35:17,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:17,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32283566] [2020-10-12 14:35:17,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:17,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:17,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:17,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:18,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:18,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:19,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:22,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:22,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 478 [2020-10-12 14:35:22,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:35:22,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-12 14:35:22,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:22,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:35:22,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-12 14:35:22,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-12 14:35:22,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:35:22,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:22,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:22,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:22,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:22,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:22,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:35:22,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:22,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:22,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:22,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:22,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:22,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:22,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:22,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:22,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:35:22,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:22,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:35:22,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:22,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:22,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:22,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 14:35:22,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:22,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:35:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:22,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:22,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:22,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:22,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 14:35:22,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:35:22,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-12 14:35:22,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:22,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:22,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:22,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 14:35:22,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:22,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 14:35:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:22,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:22,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:22,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:35:22,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:22,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-12 14:35:22,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:22,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:22,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:22,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:35:22,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:22,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-12 14:35:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:23,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:23,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:23,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:35:23,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:23,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:35:23,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:23,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:23,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-12 14:35:23,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:23,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 236 proven. 198 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2020-10-12 14:35:23,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32283566] [2020-10-12 14:35:23,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:23,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:35:23,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654396018] [2020-10-12 14:35:23,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:35:23,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:23,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:35:23,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:35:23,484 INFO L87 Difference]: Start difference. First operand 3120 states and 4212 transitions. Second operand 8 states. [2020-10-12 14:35:29,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:29,447 INFO L93 Difference]: Finished difference Result 8356 states and 11338 transitions. [2020-10-12 14:35:29,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:35:29,448 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 462 [2020-10-12 14:35:29,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:29,473 INFO L225 Difference]: With dead ends: 8356 [2020-10-12 14:35:29,473 INFO L226 Difference]: Without dead ends: 4519 [2020-10-12 14:35:29,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-12 14:35:29,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4519 states. [2020-10-12 14:35:29,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4519 to 3823. [2020-10-12 14:35:29,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3823 states. [2020-10-12 14:35:29,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 4217 transitions. [2020-10-12 14:35:29,595 INFO L78 Accepts]: Start accepts. Automaton has 3823 states and 4217 transitions. Word has length 462 [2020-10-12 14:35:29,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:29,596 INFO L479 AbstractCegarLoop]: Abstraction has 3823 states and 4217 transitions. [2020-10-12 14:35:29,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:35:29,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3823 states and 4217 transitions. [2020-10-12 14:35:29,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2020-10-12 14:35:29,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:29,619 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:35:29,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:35:29,620 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:29,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:29,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1920993865, now seen corresponding path program 1 times [2020-10-12 14:35:29,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:29,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204744912] [2020-10-12 14:35:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:29,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:29,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:30,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:30,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:34,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:34,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 707 [2020-10-12 14:35:34,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:35:34,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-12 14:35:34,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:35:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:35:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:35:34,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:34,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:34,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:34,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:34,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:34,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:34,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:35:34,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:35:34,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:35:34,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:34,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:34,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:34,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:35:34,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:34,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-12 14:35:34,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:34,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:34,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 14:35:34,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:35,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 14:35:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:35,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:35,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:35,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:35:35,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:35,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:35:35,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:35,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:35:35,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:35,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:35,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-12 14:35:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:35,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:35,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:35,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:35:35,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:35:35,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:35,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:35,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:35:35,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:35,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:35:35,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-12 14:35:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:35,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:35,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:35,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:35:35,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:35,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:35:35,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:35,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:35,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:35:35,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:35,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:35:35,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-12 14:35:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:35,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:35,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:35,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:35:35,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:35,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:35:35,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:35,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:35,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:35:35,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:35,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:35,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 65 proven. 380 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2020-10-12 14:35:35,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204744912] [2020-10-12 14:35:35,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:35,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:35:35,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038711538] [2020-10-12 14:35:35,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:35:35,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:35,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:35:35,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:35:35,964 INFO L87 Difference]: Start difference. First operand 3823 states and 4217 transitions. Second operand 7 states. [2020-10-12 14:35:39,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:39,201 INFO L93 Difference]: Finished difference Result 11432 states and 12793 transitions. [2020-10-12 14:35:39,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:35:39,202 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 689 [2020-10-12 14:35:39,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:39,235 INFO L225 Difference]: With dead ends: 11432 [2020-10-12 14:35:39,235 INFO L226 Difference]: Without dead ends: 7615 [2020-10-12 14:35:39,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:35:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7615 states. [2020-10-12 14:35:39,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7615 to 7597. [2020-10-12 14:35:39,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7597 states. [2020-10-12 14:35:39,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7597 states to 7597 states and 8435 transitions. [2020-10-12 14:35:39,437 INFO L78 Accepts]: Start accepts. Automaton has 7597 states and 8435 transitions. Word has length 689 [2020-10-12 14:35:39,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:39,438 INFO L479 AbstractCegarLoop]: Abstraction has 7597 states and 8435 transitions. [2020-10-12 14:35:39,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:35:39,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7597 states and 8435 transitions. [2020-10-12 14:35:39,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2020-10-12 14:35:39,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:39,477 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:35:39,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:35:39,477 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:39,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:39,478 INFO L82 PathProgramCache]: Analyzing trace with hash -890192982, now seen corresponding path program 1 times [2020-10-12 14:35:39,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:39,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414727449] [2020-10-12 14:35:39,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:39,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:39,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:40,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:40,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:44,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:44,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 725 [2020-10-12 14:35:44,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:35:44,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 14:35:44,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:44,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:35:44,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:35:44,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-12 14:35:44,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:44,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:44,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:44,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:44,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:44,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:44,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:35:44,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:44,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:44,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:44,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:35:44,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:44,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:44,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:44,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:45,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:45,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:35:45,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:35:45,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-10-12 14:35:45,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:35:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:35:45,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:46,117 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2020-10-12 14:35:46,293 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2020-10-12 14:35:46,482 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2020-10-12 14:35:46,674 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2020-10-12 14:35:46,874 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 14:35:47,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-12 14:35:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:47,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:47,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:47,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:35:47,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:47,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:35:47,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:47,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:47,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:35:47,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:47,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:47,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-12 14:35:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:47,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:47,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:47,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:35:47,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:47,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:35:47,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:35:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:47,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:47,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2020-10-12 14:35:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:47,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:48,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:48,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:35:48,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:48,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 14:35:48,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:48,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:48,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:35:48,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:48,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 52 proven. 425 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2020-10-12 14:35:50,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414727449] [2020-10-12 14:35:50,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:50,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:35:50,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424119145] [2020-10-12 14:35:50,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:35:50,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:50,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:35:50,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:35:50,484 INFO L87 Difference]: Start difference. First operand 7597 states and 8435 transitions. Second operand 13 states. [2020-10-12 14:35:51,289 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2020-10-12 14:35:51,644 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2020-10-12 14:35:51,958 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-10-12 14:35:52,353 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2020-10-12 14:35:52,787 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2020-10-12 14:35:53,120 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 62 [2020-10-12 14:35:53,904 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2020-10-12 14:35:54,253 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-10-12 14:35:54,528 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2020-10-12 14:35:54,884 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-12 14:35:55,204 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-10-12 14:35:55,499 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2020-10-12 14:35:55,764 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2020-10-12 14:35:56,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:56,920 INFO L93 Difference]: Finished difference Result 15197 states and 16890 transitions. [2020-10-12 14:35:56,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 14:35:56,926 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 709 [2020-10-12 14:35:56,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:56,970 INFO L225 Difference]: With dead ends: 15197 [2020-10-12 14:35:56,970 INFO L226 Difference]: Without dead ends: 7514 [2020-10-12 14:35:56,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:35:56,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7514 states. [2020-10-12 14:35:57,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7514 to 7504. [2020-10-12 14:35:57,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7504 states. [2020-10-12 14:35:57,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 8339 transitions. [2020-10-12 14:35:57,228 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 8339 transitions. Word has length 709 [2020-10-12 14:35:57,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:57,229 INFO L479 AbstractCegarLoop]: Abstraction has 7504 states and 8339 transitions. [2020-10-12 14:35:57,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:35:57,229 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 8339 transitions. [2020-10-12 14:35:57,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2020-10-12 14:35:57,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:57,245 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:35:57,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:35:57,246 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:57,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:57,246 INFO L82 PathProgramCache]: Analyzing trace with hash 638041018, now seen corresponding path program 1 times [2020-10-12 14:35:57,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:57,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514713350] [2020-10-12 14:35:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:57,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:57,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:58,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:59,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:59,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:01,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:02,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:02,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 846 [2020-10-12 14:36:02,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:36:02,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-12 14:36:02,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:02,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:36:02,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 609 [2020-10-12 14:36:02,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 236 [2020-10-12 14:36:02,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:02,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:02,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:02,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:02,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:02,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:02,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:36:02,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:02,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:02,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:02,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:02,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:02,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:02,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:02,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:02,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:36:02,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:02,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:36:02,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:02,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:02,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:02,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:02,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:36:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:02,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:02,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:02,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:36:02,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:02,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:36:02,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:02,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:02,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:02,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:02,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:02,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:36:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:02,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:02,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:02,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:36:02,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:02,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:36:02,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:02,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:02,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:36:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:02,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:02,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:02,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:36:02,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:02,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:36:02,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:02,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:36:02,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:02,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:36:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:02,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:03,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:03,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:03,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:36:03,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:36:03,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-10-12 14:36:03,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:03,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:03,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:03,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-12 14:36:03,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 619 proven. 16 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2020-10-12 14:36:03,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514713350] [2020-10-12 14:36:03,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:03,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:36:03,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645160088] [2020-10-12 14:36:03,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:36:03,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:03,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:36:03,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:36:03,843 INFO L87 Difference]: Start difference. First operand 7504 states and 8339 transitions. Second operand 6 states. [2020-10-12 14:36:06,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:06,200 INFO L93 Difference]: Finished difference Result 14788 states and 16525 transitions. [2020-10-12 14:36:06,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:36:06,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 828 [2020-10-12 14:36:06,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:06,226 INFO L225 Difference]: With dead ends: 14788 [2020-10-12 14:36:06,226 INFO L226 Difference]: Without dead ends: 7534 [2020-10-12 14:36:06,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 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 14:36:06,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7534 states. [2020-10-12 14:36:06,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7534 to 7504. [2020-10-12 14:36:06,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7504 states. [2020-10-12 14:36:06,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 8223 transitions. [2020-10-12 14:36:06,392 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 8223 transitions. Word has length 828 [2020-10-12 14:36:06,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:06,393 INFO L479 AbstractCegarLoop]: Abstraction has 7504 states and 8223 transitions. [2020-10-12 14:36:06,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:36:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 8223 transitions. [2020-10-12 14:36:06,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2020-10-12 14:36:06,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:06,417 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:06,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:36:06,418 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:06,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:06,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1179941417, now seen corresponding path program 1 times [2020-10-12 14:36:06,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:06,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176799735] [2020-10-12 14:36:06,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:06,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:06,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:06,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:11,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:11,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 895 [2020-10-12 14:36:11,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:36:11,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-12 14:36:11,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:11,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:11,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-12 14:36:11,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 14:36:11,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:11,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:11,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:11,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:11,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:11,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:11,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:36:11,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:11,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:11,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:11,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:11,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:11,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:36:11,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:11,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 14:36:11,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:11,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:11,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:11,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:36:11,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:11,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:36:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:11,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:11,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:11,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:36:11,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:11,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 14:36:11,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:11,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:11,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:11,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:36:11,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:12,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:36:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:12,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:12,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:12,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:36:12,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:12,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:36:12,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:12,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:12,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:36:12,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:12,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:12,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:36:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:12,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:12,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:12,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:36:12,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:12,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:36:12,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:12,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:12,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:36:12,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:12,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:12,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 764 [2020-10-12 14:36:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:12,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:12,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:12,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:36:12,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:12,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:36:12,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-12 14:36:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:12,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:12,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 203 proven. 338 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2020-10-12 14:36:12,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176799735] [2020-10-12 14:36:12,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:12,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:36:12,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260585048] [2020-10-12 14:36:12,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:36:12,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:12,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:36:12,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:36:12,802 INFO L87 Difference]: Start difference. First operand 7504 states and 8223 transitions. Second operand 7 states. [2020-10-12 14:36:15,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:15,814 INFO L93 Difference]: Finished difference Result 17829 states and 19662 transitions. [2020-10-12 14:36:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:36:15,815 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 877 [2020-10-12 14:36:15,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:15,841 INFO L225 Difference]: With dead ends: 17829 [2020-10-12 14:36:15,842 INFO L226 Difference]: Without dead ends: 10575 [2020-10-12 14:36:15,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:36:15,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2020-10-12 14:36:16,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 9213. [2020-10-12 14:36:16,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9213 states. [2020-10-12 14:36:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9213 states to 9213 states and 9875 transitions. [2020-10-12 14:36:16,029 INFO L78 Accepts]: Start accepts. Automaton has 9213 states and 9875 transitions. Word has length 877 [2020-10-12 14:36:16,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:16,029 INFO L479 AbstractCegarLoop]: Abstraction has 9213 states and 9875 transitions. [2020-10-12 14:36:16,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:36:16,030 INFO L276 IsEmpty]: Start isEmpty. Operand 9213 states and 9875 transitions. [2020-10-12 14:36:16,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1017 [2020-10-12 14:36:16,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:16,055 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:16,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:36:16,056 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:16,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:16,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1205859129, now seen corresponding path program 1 times [2020-10-12 14:36:16,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:16,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755825238] [2020-10-12 14:36:16,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:16,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:16,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:17,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:20,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:21,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:21,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1038 [2020-10-12 14:36:21,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:36:21,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 14:36:21,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:36:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 719 [2020-10-12 14:36:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 297 [2020-10-12 14:36:21,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:21,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:21,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:21,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:21,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:21,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:21,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:36:21,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:21,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:21,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:21,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:21,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:21,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:36:21,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:21,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:36:21,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:21,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:21,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:21,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:21,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:21,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:36:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:21,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:21,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:21,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:36:21,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:21,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:36:21,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:21,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:21,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-12 14:36:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:21,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:21,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:21,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:36:21,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:21,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:36:21,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:21,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:21,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2020-10-12 14:36:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:21,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:21,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:21,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:36:21,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:21,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:36:21,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:21,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:21,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:21,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:21,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:21,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:36:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:21,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:21,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:21,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:36:21,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:21,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 14:36:21,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:21,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:21,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:21,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:36:21,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:21,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 709 [2020-10-12 14:36:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:21,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:22,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:22,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:22,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:36:22,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:36:22,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 741 [2020-10-12 14:36:22,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:36:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 298 [2020-10-12 14:36:22,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:22,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:36:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:22,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:22,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:22,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:36:22,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:22,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:36:22,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:22,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:36:22,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:22,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 14:36:22,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:24,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 784 proven. 2 refuted. 0 times theorem prover too weak. 1082 trivial. 0 not checked. [2020-10-12 14:36:24,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755825238] [2020-10-12 14:36:24,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:24,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 14:36:24,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545486272] [2020-10-12 14:36:24,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:36:24,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:24,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:36:24,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:36:24,610 INFO L87 Difference]: Start difference. First operand 9213 states and 9875 transitions. Second operand 9 states. [2020-10-12 14:36:29,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:29,336 INFO L93 Difference]: Finished difference Result 18523 states and 19880 transitions. [2020-10-12 14:36:29,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 14:36:29,338 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1016 [2020-10-12 14:36:29,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:29,363 INFO L225 Difference]: With dead ends: 18523 [2020-10-12 14:36:29,363 INFO L226 Difference]: Without dead ends: 9560 [2020-10-12 14:36:29,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2020-10-12 14:36:29,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9560 states. [2020-10-12 14:36:29,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9560 to 9215. [2020-10-12 14:36:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9215 states. [2020-10-12 14:36:29,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9215 states to 9215 states and 9853 transitions. [2020-10-12 14:36:29,525 INFO L78 Accepts]: Start accepts. Automaton has 9215 states and 9853 transitions. Word has length 1016 [2020-10-12 14:36:29,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:29,526 INFO L479 AbstractCegarLoop]: Abstraction has 9215 states and 9853 transitions. [2020-10-12 14:36:29,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:36:29,526 INFO L276 IsEmpty]: Start isEmpty. Operand 9215 states and 9853 transitions. [2020-10-12 14:36:29,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2020-10-12 14:36:29,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:29,563 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:29,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:36:29,564 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:29,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:29,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1514394139, now seen corresponding path program 1 times [2020-10-12 14:36:29,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:29,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661846803] [2020-10-12 14:36:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:29,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:30,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:30,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:31,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:34,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:34,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1093 [2020-10-12 14:36:34,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:36:34,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-12 14:36:34,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:34,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:34,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-12 14:36:34,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 14:36:34,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:34,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:34,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:34,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:34,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:34,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:34,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:36:34,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:34,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:34,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:34,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:34,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:34,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:36:34,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:34,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:36:34,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:34,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:34,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:34,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:34,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:35,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:36:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:35,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:35,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:35,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:36:35,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:35,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:36:35,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:35,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:35,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:35,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 14:36:35,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:35,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-12 14:36:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:35,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:35,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:35,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:36:35,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:35,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 14:36:35,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:35,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:35,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:35,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:36:35,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:35,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2020-10-12 14:36:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:35,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:35,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:35,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:36:35,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:35,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:36:35,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:35,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:35,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:36:35,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:35,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:35,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:36:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:35,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:35,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:35,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:36:35,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:35,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 14:36:35,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:35,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:35,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:36:35,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:35,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:35,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 872 [2020-10-12 14:36:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:35,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:35,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:35,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:36:35,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:35,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:36:35,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 14:36:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:35,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:35,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2020-10-12 14:36:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:35,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:35,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:35,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 14:36:35,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:35,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:36:35,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-12 14:36:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:35,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:36,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2330 backedges. 351 proven. 421 refuted. 0 times theorem prover too weak. 1558 trivial. 0 not checked. [2020-10-12 14:36:36,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661846803] [2020-10-12 14:36:36,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:36,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:36:36,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572053128] [2020-10-12 14:36:36,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:36:36,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:36,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:36:36,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:36:36,172 INFO L87 Difference]: Start difference. First operand 9215 states and 9853 transitions. Second operand 7 states. [2020-10-12 14:36:39,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:39,510 INFO L93 Difference]: Finished difference Result 22609 states and 24279 transitions. [2020-10-12 14:36:39,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:36:39,511 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1071 [2020-10-12 14:36:39,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:39,559 INFO L225 Difference]: With dead ends: 22609 [2020-10-12 14:36:39,559 INFO L226 Difference]: Without dead ends: 13644 [2020-10-12 14:36:39,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:36:39,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13644 states. [2020-10-12 14:36:39,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13644 to 12613. [2020-10-12 14:36:39,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12613 states. [2020-10-12 14:36:39,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12613 states to 12613 states and 13501 transitions. [2020-10-12 14:36:39,813 INFO L78 Accepts]: Start accepts. Automaton has 12613 states and 13501 transitions. Word has length 1071 [2020-10-12 14:36:39,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:39,814 INFO L479 AbstractCegarLoop]: Abstraction has 12613 states and 13501 transitions. [2020-10-12 14:36:39,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:36:39,814 INFO L276 IsEmpty]: Start isEmpty. Operand 12613 states and 13501 transitions. [2020-10-12 14:36:39,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1092 [2020-10-12 14:36:39,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:39,844 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:36:39,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:36:39,844 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:39,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:39,845 INFO L82 PathProgramCache]: Analyzing trace with hash -2009781048, now seen corresponding path program 1 times [2020-10-12 14:36:39,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:39,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434372212] [2020-10-12 14:36:39,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:40,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:40,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:40,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:40,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:45,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:45,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1111 [2020-10-12 14:36:45,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:36:45,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-12 14:36:45,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:45,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:36:45,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:36:45,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-12 14:36:45,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:45,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:45,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:45,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:45,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:45,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:45,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:36:45,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:36:45,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:45,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:45,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:45,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:45,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:45,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:36:45,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:36:45,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-12 14:36:45,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:45,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:45,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:45,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-12 14:36:45,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:45,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:36:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:45,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:46,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:46,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:36:46,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:46,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-12 14:36:46,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:36:46,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:46,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-12 14:36:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:46,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:46,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:46,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:36:46,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:46,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:36:46,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:46,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:46,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:36:46,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:46,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:46,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 619 [2020-10-12 14:36:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:46,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:46,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:46,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:36:46,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:46,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-12 14:36:46,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:46,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:46,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:36:46,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:46,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:46,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 892 [2020-10-12 14:36:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:46,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:46,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:46,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:36:46,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:46,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:36:46,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:46,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:46,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 14:36:46,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:46,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:46,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 963 [2020-10-12 14:36:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:46,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:46,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:46,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 14:36:46,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:46,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:36:46,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:46,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:46,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-12 14:36:46,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:46,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:48,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 95 proven. 1062 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2020-10-12 14:36:48,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434372212] [2020-10-12 14:36:48,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:48,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:36:48,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804690400] [2020-10-12 14:36:48,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:36:48,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:48,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:36:48,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:36:48,776 INFO L87 Difference]: Start difference. First operand 12613 states and 13501 transitions. Second operand 7 states. [2020-10-12 14:36:51,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:51,472 INFO L93 Difference]: Finished difference Result 25325 states and 27110 transitions. [2020-10-12 14:36:51,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:36:51,477 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1091 [2020-10-12 14:36:51,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:51,509 INFO L225 Difference]: With dead ends: 25325 [2020-10-12 14:36:51,510 INFO L226 Difference]: Without dead ends: 12962 [2020-10-12 14:36:51,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:36:51,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12962 states. [2020-10-12 14:36:51,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12962 to 12950. [2020-10-12 14:36:51,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12950 states. [2020-10-12 14:36:51,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12950 states to 12950 states and 13846 transitions. [2020-10-12 14:36:51,738 INFO L78 Accepts]: Start accepts. Automaton has 12950 states and 13846 transitions. Word has length 1091 [2020-10-12 14:36:51,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:51,739 INFO L479 AbstractCegarLoop]: Abstraction has 12950 states and 13846 transitions. [2020-10-12 14:36:51,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:36:51,739 INFO L276 IsEmpty]: Start isEmpty. Operand 12950 states and 13846 transitions. [2020-10-12 14:36:51,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1192 [2020-10-12 14:36:51,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:51,773 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:36:51,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:36:51,773 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:51,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:51,775 INFO L82 PathProgramCache]: Analyzing trace with hash 763646859, now seen corresponding path program 1 times [2020-10-12 14:36:51,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:51,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369601493] [2020-10-12 14:36:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:52,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:52,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:52,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:53,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1213 [2020-10-12 14:36:57,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:36:57,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-12 14:36:57,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:57,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-12 14:36:57,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-12 14:36:57,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:57,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:57,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:57,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:36:57,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:57,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:57,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:36:57,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:57,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:36:57,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:57,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:57,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:57,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:36:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:57,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:36:57,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:57,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:36:57,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:57,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:57,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 14:36:57,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-12 14:36:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:57,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:36:57,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:57,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-12 14:36:57,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:57,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:36:57,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-12 14:36:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:57,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:36:57,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:57,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:36:57,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:57,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:36:57,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:57,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2020-10-12 14:36:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:57,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:36:57,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:57,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 14:36:57,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:57,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:36:57,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:57,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 992 [2020-10-12 14:36:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:57,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:36:57,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:57,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:36:57,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:57,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 14:36:57,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:57,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1063 [2020-10-12 14:36:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:58,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:58,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:58,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 14:36:58,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:58,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:36:58,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:58,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:58,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-12 14:36:58,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:58,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:59,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2568 backedges. 469 proven. 541 refuted. 0 times theorem prover too weak. 1558 trivial. 0 not checked. [2020-10-12 14:36:59,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369601493] [2020-10-12 14:36:59,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:59,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:36:59,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711002649] [2020-10-12 14:36:59,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:36:59,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:59,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:36:59,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:36:59,171 INFO L87 Difference]: Start difference. First operand 12950 states and 13846 transitions. Second operand 7 states. [2020-10-12 14:37:02,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:02,271 INFO L93 Difference]: Finished difference Result 26001 states and 27827 transitions. [2020-10-12 14:37:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:37:02,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1191 [2020-10-12 14:37:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:02,296 INFO L225 Difference]: With dead ends: 26001 [2020-10-12 14:37:02,296 INFO L226 Difference]: Without dead ends: 13301 [2020-10-12 14:37:02,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:37:02,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13301 states. [2020-10-12 14:37:02,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13301 to 13287. [2020-10-12 14:37:02,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13287 states. [2020-10-12 14:37:02,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13287 states to 13287 states and 14185 transitions. [2020-10-12 14:37:02,498 INFO L78 Accepts]: Start accepts. Automaton has 13287 states and 14185 transitions. Word has length 1191 [2020-10-12 14:37:02,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:02,499 INFO L479 AbstractCegarLoop]: Abstraction has 13287 states and 14185 transitions. [2020-10-12 14:37:02,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:02,499 INFO L276 IsEmpty]: Start isEmpty. Operand 13287 states and 14185 transitions. [2020-10-12 14:37:02,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1196 [2020-10-12 14:37:02,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:02,530 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:37:02,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:37:02,530 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:02,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:02,531 INFO L82 PathProgramCache]: Analyzing trace with hash -2039674160, now seen corresponding path program 1 times [2020-10-12 14:37:02,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:02,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758795833] [2020-10-12 14:37:02,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:02,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:03,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:03,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:04,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:07,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:07,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1219 [2020-10-12 14:37:07,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:37:07,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-12 14:37:07,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-12 14:37:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:37:07,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:07,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:07,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:07,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:07,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:07,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:07,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:07,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:07,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:07,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:07,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:07,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:07,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:07,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:07,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:37:07,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:07,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:07,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:07,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:07,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:08,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:08,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:08,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:08,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:37:08,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:08,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:37:08,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:08,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:08,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:08,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:08,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:08,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:37:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:08,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:08,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:08,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:08,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:08,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:37:08,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:08,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:08,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:08,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:37:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:08,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:08,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:08,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:37:08,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:08,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:37:08,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:08,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:08,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:08,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 14:37:08,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:08,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:37:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:08,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:08,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:08,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:37:08,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:08,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 14:37:08,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:37:08,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:08,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-12 14:37:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:08,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:08,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:08,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:37:08,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:08,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 14:37:08,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:37:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:08,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:08,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 996 [2020-10-12 14:37:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:08,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:08,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:08,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:37:08,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:08,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:37:08,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 14:37:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:08,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:08,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:37:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:08,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:08,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:08,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 14:37:08,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:08,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:37:08,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:08,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:08,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-12 14:37:08,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3009 backedges. 570 proven. 294 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2020-10-12 14:37:09,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758795833] [2020-10-12 14:37:09,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:09,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:37:09,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077482231] [2020-10-12 14:37:09,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:37:09,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:09,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:37:09,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:37:09,170 INFO L87 Difference]: Start difference. First operand 13287 states and 14185 transitions. Second operand 7 states. [2020-10-12 14:37:12,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:12,783 INFO L93 Difference]: Finished difference Result 30079 states and 32283 transitions. [2020-10-12 14:37:12,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:37:12,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1195 [2020-10-12 14:37:12,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:12,825 INFO L225 Difference]: With dead ends: 30079 [2020-10-12 14:37:12,825 INFO L226 Difference]: Without dead ends: 17042 [2020-10-12 14:37:12,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:37:12,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17042 states. [2020-10-12 14:37:13,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17042 to 17026. [2020-10-12 14:37:13,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17026 states. [2020-10-12 14:37:13,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17026 states to 17026 states and 18142 transitions. [2020-10-12 14:37:13,111 INFO L78 Accepts]: Start accepts. Automaton has 17026 states and 18142 transitions. Word has length 1195 [2020-10-12 14:37:13,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:13,112 INFO L479 AbstractCegarLoop]: Abstraction has 17026 states and 18142 transitions. [2020-10-12 14:37:13,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:13,112 INFO L276 IsEmpty]: Start isEmpty. Operand 17026 states and 18142 transitions. [2020-10-12 14:37:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1206 [2020-10-12 14:37:13,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:13,150 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:37:13,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:37:13,150 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:13,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:13,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1270415343, now seen corresponding path program 1 times [2020-10-12 14:37:13,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:13,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397004937] [2020-10-12 14:37:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:13,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:13,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:14,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1227 [2020-10-12 14:37:18,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:37:18,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-12 14:37:18,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:18,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1016 [2020-10-12 14:37:18,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:37:18,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:18,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:18,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:37:18,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:18,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:18,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:18,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:37:18,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:18,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:18,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:18,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:37:18,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:18,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:37:18,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:18,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:18,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:18,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:37:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:18,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:18,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:37:18,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:18,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:37:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:18,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:18,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:37:18,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:18,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:37:18,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:18,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:18,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-12 14:37:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:18,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:19,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:19,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:37:19,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:19,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-12 14:37:19,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:19,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:19,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:19,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:37:19,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:37:19,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-12 14:37:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:19,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:19,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:19,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:37:19,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:19,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 14:37:19,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 14:37:19,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:19,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1077 [2020-10-12 14:37:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:19,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:19,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:19,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 14:37:19,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:19,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:37:19,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:19,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:19,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-12 14:37:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:19,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2728 backedges. 471 proven. 70 refuted. 0 times theorem prover too weak. 2187 trivial. 0 not checked. [2020-10-12 14:37:20,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397004937] [2020-10-12 14:37:20,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:20,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:37:20,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909973663] [2020-10-12 14:37:20,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:37:20,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:20,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:37:20,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:37:20,253 INFO L87 Difference]: Start difference. First operand 17026 states and 18142 transitions. Second operand 7 states. [2020-10-12 14:37:23,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:23,670 INFO L93 Difference]: Finished difference Result 35501 states and 37800 transitions. [2020-10-12 14:37:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:37:23,671 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1205 [2020-10-12 14:37:23,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:23,709 INFO L225 Difference]: With dead ends: 35501 [2020-10-12 14:37:23,709 INFO L226 Difference]: Without dead ends: 18725 [2020-10-12 14:37:23,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:37:23,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18725 states. [2020-10-12 14:37:23,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18725 to 17367. [2020-10-12 14:37:23,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17367 states. [2020-10-12 14:37:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17367 states to 17367 states and 18489 transitions. [2020-10-12 14:37:23,963 INFO L78 Accepts]: Start accepts. Automaton has 17367 states and 18489 transitions. Word has length 1205 [2020-10-12 14:37:23,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:23,963 INFO L479 AbstractCegarLoop]: Abstraction has 17367 states and 18489 transitions. [2020-10-12 14:37:23,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:23,964 INFO L276 IsEmpty]: Start isEmpty. Operand 17367 states and 18489 transitions. [2020-10-12 14:37:23,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2020-10-12 14:37:23,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:23,985 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-12 14:37:23,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:37:23,985 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:23,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:23,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1855203261, now seen corresponding path program 1 times [2020-10-12 14:37:23,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:23,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015114844] [2020-10-12 14:37:23,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:24,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:24,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:27,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:27,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:29,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:29,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1402 [2020-10-12 14:37:29,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:37:29,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 14:37:29,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:29,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:29,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1264 [2020-10-12 14:37:29,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 14:37:29,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:29,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:29,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:29,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:29,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:29,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:29,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:29,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:29,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:29,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:29,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:29,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:29,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:29,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:37:29,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:29,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:29,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:29,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:29,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:29,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:29,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:29,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:29,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:37:29,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:29,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:37:29,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:29,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:29,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:29,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:29,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:29,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:37:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:29,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:29,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:29,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:29,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:29,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:37:29,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:29,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:29,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:29,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:29,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:29,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:37:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:29,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:29,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:29,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:37:29,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:29,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:37:29,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:29,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:29,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-12 14:37:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:29,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:29,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:29,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:37:29,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:29,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:37:29,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:29,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:29,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:29,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:29,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:29,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:37:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:29,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:29,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:29,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:37:29,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:29,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:37:29,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:29,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:29,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:29,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:29,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:29,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-12 14:37:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:29,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:29,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:29,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:37:29,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:29,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:37:29,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:29,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:29,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:29,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 14:37:29,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:29,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1250 [2020-10-12 14:37:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:29,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:30,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:30,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 14:37:30,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:30,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:37:30,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:30,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:30,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:30,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 14:37:30,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3639 backedges. 876 proven. 2 refuted. 0 times theorem prover too weak. 2761 trivial. 0 not checked. [2020-10-12 14:37:30,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015114844] [2020-10-12 14:37:30,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:30,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:37:30,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769288981] [2020-10-12 14:37:30,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:37:30,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:30,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:37:30,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:37:30,834 INFO L87 Difference]: Start difference. First operand 17367 states and 18489 transitions. Second operand 7 states. [2020-10-12 14:37:33,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:33,658 INFO L93 Difference]: Finished difference Result 36190 states and 38683 transitions. [2020-10-12 14:37:33,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:37:33,659 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1378 [2020-10-12 14:37:33,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:33,699 INFO L225 Difference]: With dead ends: 36190 [2020-10-12 14:37:33,699 INFO L226 Difference]: Without dead ends: 19073 [2020-10-12 14:37:33,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:37:33,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19073 states. [2020-10-12 14:37:33,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19073 to 19059. [2020-10-12 14:37:33,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19059 states. [2020-10-12 14:37:33,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19059 states to 19059 states and 20351 transitions. [2020-10-12 14:37:33,981 INFO L78 Accepts]: Start accepts. Automaton has 19059 states and 20351 transitions. Word has length 1378 [2020-10-12 14:37:33,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:33,982 INFO L479 AbstractCegarLoop]: Abstraction has 19059 states and 20351 transitions. [2020-10-12 14:37:33,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:33,983 INFO L276 IsEmpty]: Start isEmpty. Operand 19059 states and 20351 transitions. [2020-10-12 14:37:34,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1558 [2020-10-12 14:37:34,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:34,015 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-12 14:37:34,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:37:34,015 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:34,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:34,016 INFO L82 PathProgramCache]: Analyzing trace with hash -868238560, now seen corresponding path program 1 times [2020-10-12 14:37:34,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:34,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775884148] [2020-10-12 14:37:34,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:34,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:34,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:35,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:39,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:39,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1583 [2020-10-12 14:37:39,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:37:39,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-12 14:37:39,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:39,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:39,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-12 14:37:39,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 14:37:39,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:39,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:39,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:39,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:39,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:39,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:39,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:39,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:39,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:39,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:39,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:39,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:39,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:39,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:39,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:39,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:39,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:39,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:37:39,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:39,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:39,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:39,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:39,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:39,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:39,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:39,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:39,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:37:39,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:39,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:37:39,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:39,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:39,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:39,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 14:37:39,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:39,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:37:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:39,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:39,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:39,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:39,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:39,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 14:37:39,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:37:39,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:37:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:37:40,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-12 14:37:40,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-12 14:37:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-12 14:37:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:37:40,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 14:37:40,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:37:40,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 14:37:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:37:40,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:37:40,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-12 14:37:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-12 14:37:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:37:40,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:37:40,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 14:37:40,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1250 [2020-10-12 14:37:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:37:40,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 14:37:40,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:37:40,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:40,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:37:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:40,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:40,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:40,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:37:40,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:40,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:37:40,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:40,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:40,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:40,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:40,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:41,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4118 backedges. 401 proven. 557 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2020-10-12 14:37:41,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775884148] [2020-10-12 14:37:41,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:41,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:37:41,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253987254] [2020-10-12 14:37:41,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:37:41,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:41,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:37:41,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:37:41,996 INFO L87 Difference]: Start difference. First operand 19059 states and 20351 transitions. Second operand 7 states. [2020-10-12 14:37:45,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:45,179 INFO L93 Difference]: Finished difference Result 38217 states and 40823 transitions. [2020-10-12 14:37:45,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:37:45,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1557 [2020-10-12 14:37:45,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:45,208 INFO L225 Difference]: With dead ends: 38217 [2020-10-12 14:37:45,209 INFO L226 Difference]: Without dead ends: 19408 [2020-10-12 14:37:45,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:37:45,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19408 states. [2020-10-12 14:37:45,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19408 to 19396. [2020-10-12 14:37:45,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19396 states. [2020-10-12 14:37:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19396 states to 19396 states and 20690 transitions. [2020-10-12 14:37:45,432 INFO L78 Accepts]: Start accepts. Automaton has 19396 states and 20690 transitions. Word has length 1557 [2020-10-12 14:37:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:45,433 INFO L479 AbstractCegarLoop]: Abstraction has 19396 states and 20690 transitions. [2020-10-12 14:37:45,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:45,433 INFO L276 IsEmpty]: Start isEmpty. Operand 19396 states and 20690 transitions. [2020-10-12 14:37:45,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1560 [2020-10-12 14:37:45,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:45,465 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-12 14:37:45,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:37:45,465 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:45,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:45,466 INFO L82 PathProgramCache]: Analyzing trace with hash -95378492, now seen corresponding path program 1 times [2020-10-12 14:37:45,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:45,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672815538] [2020-10-12 14:37:45,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:45,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:46,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:46,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:50,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:50,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1585 [2020-10-12 14:37:50,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:37:50,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5095 [2020-10-12 14:37:50,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-12 14:37:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 14:37:50,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:50,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:50,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:50,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:50,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:50,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:50,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:37:50,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:50,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:50,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:50,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:50,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:50,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:50,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:50,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:50,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:50,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:50,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:37:50,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:50,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:50,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:50,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:50,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:50,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:51,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:51,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 14:37:51,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:51,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:37:51,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:51,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-12 14:37:51,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:51,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-12 14:37:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:51,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:51,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:51,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 14:37:51,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:37:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:51,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:37:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:51,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:51,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:37:51,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:51,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:37:51,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:51,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:51,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-12 14:37:51,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:51,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:51,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-12 14:37:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:51,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:51,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:37:51,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:51,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 14:37:51,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:37:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:51,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:51,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1069 [2020-10-12 14:37:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:51,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:51,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:37:51,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:51,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:37:51,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:51,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:51,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-12 14:37:51,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:51,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:51,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1181 [2020-10-12 14:37:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:51,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:51,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:37:51,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:51,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:37:51,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:51,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-12 14:37:51,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:51,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:51,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1252 [2020-10-12 14:37:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:52,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:52,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:52,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:37:52,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:52,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 14:37:52,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:52,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:52,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:37:52,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:52,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:52,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:37:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:52,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:52,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:52,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:37:52,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:52,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:52,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:52,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:52,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:52,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:52,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:53,352 INFO L134 CoverageAnalysis]: Checked inductivity of 4124 backedges. 401 proven. 557 refuted. 0 times theorem prover too weak. 3166 trivial. 0 not checked. [2020-10-12 14:37:53,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672815538] [2020-10-12 14:37:53,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:53,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:37:53,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621061723] [2020-10-12 14:37:53,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:37:53,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:53,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:37:53,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:37:53,355 INFO L87 Difference]: Start difference. First operand 19396 states and 20690 transitions. Second operand 7 states. [2020-10-12 14:37:56,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:56,880 INFO L93 Difference]: Finished difference Result 41587 states and 44605 transitions. [2020-10-12 14:37:56,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:37:56,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1559 [2020-10-12 14:37:56,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:56,915 INFO L225 Difference]: With dead ends: 41587 [2020-10-12 14:37:56,915 INFO L226 Difference]: Without dead ends: 22441 [2020-10-12 14:37:56,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:37:56,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22441 states. [2020-10-12 14:37:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22441 to 22098. [2020-10-12 14:37:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22098 states. [2020-10-12 14:37:57,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22098 states to 22098 states and 23457 transitions. [2020-10-12 14:37:57,226 INFO L78 Accepts]: Start accepts. Automaton has 22098 states and 23457 transitions. Word has length 1559 [2020-10-12 14:37:57,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:57,227 INFO L479 AbstractCegarLoop]: Abstraction has 22098 states and 23457 transitions. [2020-10-12 14:37:57,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:57,227 INFO L276 IsEmpty]: Start isEmpty. Operand 22098 states and 23457 transitions. [2020-10-12 14:37:57,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1605 [2020-10-12 14:37:57,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:57,270 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:37:57,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:37:57,271 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:57,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:57,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1419051386, now seen corresponding path program 1 times [2020-10-12 14:37:57,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:57,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868296841] [2020-10-12 14:37:57,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:57,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:57,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:02,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:02,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1632 [2020-10-12 14:38:02,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:38:02,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5194 [2020-10-12 14:38:02,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:38:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1240 [2020-10-12 14:38:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:38:02,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:02,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:38:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:02,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:02,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:02,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:38:02,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:02,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:38:02,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:02,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:02,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:02,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:02,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:02,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:38:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:02,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:02,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:02,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:38:02,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:02,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:38:02,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:02,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:03,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:38:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:03,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:03,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:03,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:38:03,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:03,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:38:03,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:03,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:03,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:03,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:03,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:03,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-12 14:38:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:03,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:03,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:03,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:38:03,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:03,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:38:03,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:03,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:03,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-12 14:38:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:03,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:03,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:03,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:38:03,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:03,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:38:03,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:03,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:03,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:03,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:03,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:03,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-12 14:38:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:03,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:03,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:03,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:38:03,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:03,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:38:03,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:03,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:03,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:03,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:03,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:03,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-12 14:38:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:03,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:03,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:03,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:38:03,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:03,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:38:03,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:03,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:03,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:03,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:03,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:03,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1114 [2020-10-12 14:38:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:03,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:03,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:03,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:38:03,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:03,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:38:03,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:38:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:03,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 14:38:03,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:03,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1226 [2020-10-12 14:38:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:03,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:03,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:03,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:38:03,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:03,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:38:03,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:03,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:38:03,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:38:03,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 14:38:03,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:03,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:38:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:03,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:03,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:03,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:38:03,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:03,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:38:03,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:03,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:03,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:38:03,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:03,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:03,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:38:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:03,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:03,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:38:03,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:38:03,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:38:03,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:38:03,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:38:03,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:38:03,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:38:03,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:38:03,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:38:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4702 backedges. 651 proven. 70 refuted. 0 times theorem prover too weak. 3981 trivial. 0 not checked. [2020-10-12 14:38:05,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868296841] [2020-10-12 14:38:05,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:38:05,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:38:05,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256651665] [2020-10-12 14:38:05,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:38:05,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:38:05,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:38:05,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:38:05,262 INFO L87 Difference]: Start difference. First operand 22098 states and 23457 transitions. Second operand 8 states. [2020-10-12 14:38:10,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:38:10,083 INFO L93 Difference]: Finished difference Result 46999 states and 49865 transitions. [2020-10-12 14:38:10,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:38:10,084 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1604 [2020-10-12 14:38:10,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:38:10,143 INFO L225 Difference]: With dead ends: 46999 [2020-10-12 14:38:10,143 INFO L226 Difference]: Without dead ends: 25151 [2020-10-12 14:38:10,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:38:10,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25151 states. [2020-10-12 14:38:10,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25151 to 22786. [2020-10-12 14:38:10,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22786 states. [2020-10-12 14:38:10,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22786 states to 22786 states and 24152 transitions. [2020-10-12 14:38:10,502 INFO L78 Accepts]: Start accepts. Automaton has 22786 states and 24152 transitions. Word has length 1604 [2020-10-12 14:38:10,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:38:10,503 INFO L479 AbstractCegarLoop]: Abstraction has 22786 states and 24152 transitions. [2020-10-12 14:38:10,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:38:10,504 INFO L276 IsEmpty]: Start isEmpty. Operand 22786 states and 24152 transitions. [2020-10-12 14:38:10,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1687 [2020-10-12 14:38:10,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:38:10,541 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:38:10,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:38:10,541 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:38:10,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:38:10,542 INFO L82 PathProgramCache]: Analyzing trace with hash 273495295, now seen corresponding path program 1 times [2020-10-12 14:38:10,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:38:10,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170716864] [2020-10-12 14:38:10,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:38:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:38:11,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:38:12,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking...