/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:46:39,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:46:39,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:46:39,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:46:39,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:46:39,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:46:39,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:46:39,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:46:39,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:46:39,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:46:39,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:46:39,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:46:39,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:46:39,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:46:39,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:46:39,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:46:39,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:46:39,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:46:39,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:46:39,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:46:39,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:46:39,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:46:39,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:46:39,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:46:39,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:46:39,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:46:39,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:46:39,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:46:39,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:46:39,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:46:39,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:46:39,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:46:39,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:46:39,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:46:39,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:46:39,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:46:39,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:46:39,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:46:39,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:46:39,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:46:39,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:46:39,637 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 [2020-10-14 03:46:39,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:46:39,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:46:39,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:46:39,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:46:39,660 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:46:39,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:46:39,660 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:46:39,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:46:39,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:46:39,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:46:39,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:46:39,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:46:39,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:46:39,661 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:46:39,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:46:39,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:46:39,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:46:39,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:46:39,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:46:39,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:46:39,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:46:39,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:46:39,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:46:39,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:46:39,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:46:39,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:46:39,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:46:39,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:46:39,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:46:39,665 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:46:39,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:46:39,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:46:39,976 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:46:39,979 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:46:39,979 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:46:39,980 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label32.c [2020-10-14 03:46:40,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d9d1beaf/c6b3d7bb1d8748c997312d80e3927a6d/FLAG340cb80d1 [2020-10-14 03:46:40,739 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:46:40,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label32.c [2020-10-14 03:46:40,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d9d1beaf/c6b3d7bb1d8748c997312d80e3927a6d/FLAG340cb80d1 [2020-10-14 03:46:40,822 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d9d1beaf/c6b3d7bb1d8748c997312d80e3927a6d [2020-10-14 03:46:40,831 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:46:40,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:46:40,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:40,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:46:40,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:46:40,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:40" (1/1) ... [2020-10-14 03:46:40,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ea2dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:40, skipping insertion in model container [2020-10-14 03:46:40,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:40" (1/1) ... [2020-10-14 03:46:40,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:46:40,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:46:41,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:41,865 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:46:42,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:42,260 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:46:42,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:42 WrapperNode [2020-10-14 03:46:42,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:42,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:46:42,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:46:42,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:46:42,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:42" (1/1) ... [2020-10-14 03:46:42,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:42" (1/1) ... [2020-10-14 03:46:42,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:42" (1/1) ... [2020-10-14 03:46:42,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:42" (1/1) ... [2020-10-14 03:46:42,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:42" (1/1) ... [2020-10-14 03:46:42,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:42" (1/1) ... [2020-10-14 03:46:42,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:42" (1/1) ... [2020-10-14 03:46:42,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:46:42,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:46:42,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:46:42,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:46:42,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:42" (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 [2020-10-14 03:46:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:46:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:46:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:46:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:46:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:46:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:46:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:46:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:46:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:46:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:46:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:46:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:46:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:46:44,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:46:44,867 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:46:44,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:46:44 BoogieIcfgContainer [2020-10-14 03:46:44,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:46:44,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:46:44,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:46:44,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:46:44,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:46:40" (1/3) ... [2020-10-14 03:46:44,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61235e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:46:44, skipping insertion in model container [2020-10-14 03:46:44,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:42" (2/3) ... [2020-10-14 03:46:44,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61235e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:46:44, skipping insertion in model container [2020-10-14 03:46:44,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:46:44" (3/3) ... [2020-10-14 03:46:44,883 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label32.c [2020-10-14 03:46:44,895 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:46:44,904 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:46:44,919 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:46:44,945 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:46:44,945 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:46:44,946 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:46:44,946 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:46:44,946 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:46:44,946 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:46:44,946 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:46:44,946 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:46:44,976 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:46:44,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 03:46:44,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:44,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:44,988 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:44,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:44,994 INFO L82 PathProgramCache]: Analyzing trace with hash -808797987, now seen corresponding path program 1 times [2020-10-14 03:46:45,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:45,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112548811] [2020-10-14 03:46:45,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:45,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:45,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:45,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 03:46:45,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:45,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-14 03:46:45,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:45,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:46:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:46:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 03:46:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:46:45,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:45,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:45,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:45,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:45,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:45,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:46:45,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:45,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:45,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:46:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:46:45,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112548811] [2020-10-14 03:46:45,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:46:45,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 03:46:45,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406376422] [2020-10-14 03:46:45,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:46:45,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:45,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:46:45,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:46:45,780 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 5 states. [2020-10-14 03:46:51,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:51,224 INFO L93 Difference]: Finished difference Result 1515 states and 2848 transitions. [2020-10-14 03:46:51,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:46:51,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-14 03:46:51,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:51,252 INFO L225 Difference]: With dead ends: 1515 [2020-10-14 03:46:51,252 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 03:46:51,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 03:46:51,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1031. [2020-10-14 03:46:51,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-10-14 03:46:51,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1642 transitions. [2020-10-14 03:46:51,371 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1642 transitions. Word has length 54 [2020-10-14 03:46:51,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:51,372 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1642 transitions. [2020-10-14 03:46:51,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:46:51,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1642 transitions. [2020-10-14 03:46:51,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-14 03:46:51,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:51,385 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:51,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:46:51,386 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:51,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:51,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1924739485, now seen corresponding path program 1 times [2020-10-14 03:46:51,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:51,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371134852] [2020-10-14 03:46:51,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:51,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:51,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:51,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:52,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:52,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:55,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:56,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:56,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:46:56,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:46:56,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 03:46:56,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:56,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:46:56,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:46:56,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:46:56,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:56,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:56,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:56,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:56,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:56,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:46:56,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:56,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:56,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:56,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:56,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:46:56,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:56,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:56,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:56,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:46:56,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:56,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 03:46:56,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:56,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:46:56,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:56,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 03:46:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:56,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:56,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:56,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:46:56,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:56,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 03:46:56,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:56,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:56,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:56,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:56,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 03:46:56,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:57,072 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:46:57,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371134852] [2020-10-14 03:46:57,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:57,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:57,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463630804] [2020-10-14 03:46:57,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:57,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:57,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:57,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:57,079 INFO L87 Difference]: Start difference. First operand 1031 states and 1642 transitions. Second operand 7 states. [2020-10-14 03:47:03,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:03,173 INFO L93 Difference]: Finished difference Result 2776 states and 4382 transitions. [2020-10-14 03:47:03,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:03,173 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-10-14 03:47:03,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:03,187 INFO L225 Difference]: With dead ends: 2776 [2020-10-14 03:47:03,187 INFO L226 Difference]: Without dead ends: 1751 [2020-10-14 03:47:03,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:03,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2020-10-14 03:47:03,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1729. [2020-10-14 03:47:03,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1729 states. [2020-10-14 03:47:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2550 transitions. [2020-10-14 03:47:03,249 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2550 transitions. Word has length 236 [2020-10-14 03:47:03,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:03,251 INFO L479 AbstractCegarLoop]: Abstraction has 1729 states and 2550 transitions. [2020-10-14 03:47:03,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:03,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2550 transitions. [2020-10-14 03:47:03,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-14 03:47:03,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:03,256 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:03,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:47:03,257 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:03,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:03,257 INFO L82 PathProgramCache]: Analyzing trace with hash 2024875476, now seen corresponding path program 1 times [2020-10-14 03:47:03,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:03,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766900619] [2020-10-14 03:47:03,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:03,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:03,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:03,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:04,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:05,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:08,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:08,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:47:08,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:08,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4981 [2020-10-14 03:47:08,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:08,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:47:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:47:08,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:08,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:08,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:08,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:08,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:08,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:08,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:08,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:08,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:08,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:08,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:08,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:08,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:08,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:47:08,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:08,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:47:08,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:08,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:08,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:08,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:08,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:47:08,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:08,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 03:47:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:08,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:08,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:08,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:08,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:08,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 03:47:08,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:08,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:08,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:08,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:08,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:47:08,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 03:47:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:47:08,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766900619] [2020-10-14 03:47:08,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:08,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:08,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190274218] [2020-10-14 03:47:08,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:08,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:08,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:08,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:08,715 INFO L87 Difference]: Start difference. First operand 1729 states and 2550 transitions. Second operand 7 states. [2020-10-14 03:47:13,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:13,161 INFO L93 Difference]: Finished difference Result 4163 states and 6294 transitions. [2020-10-14 03:47:13,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:47:13,162 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-10-14 03:47:13,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:13,176 INFO L225 Difference]: With dead ends: 4163 [2020-10-14 03:47:13,176 INFO L226 Difference]: Without dead ends: 2423 [2020-10-14 03:47:13,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:13,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2020-10-14 03:47:13,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2417. [2020-10-14 03:47:13,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2417 states. [2020-10-14 03:47:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 2788 transitions. [2020-10-14 03:47:13,247 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 2788 transitions. Word has length 239 [2020-10-14 03:47:13,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:13,247 INFO L479 AbstractCegarLoop]: Abstraction has 2417 states and 2788 transitions. [2020-10-14 03:47:13,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:13,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 2788 transitions. [2020-10-14 03:47:13,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-10-14 03:47:13,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:13,252 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:13,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:47:13,253 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:13,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:13,253 INFO L82 PathProgramCache]: Analyzing trace with hash -212534524, now seen corresponding path program 1 times [2020-10-14 03:47:13,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:13,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342084266] [2020-10-14 03:47:13,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:13,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:13,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:14,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:17,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:17,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-14 03:47:17,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:17,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3788 [2020-10-14 03:47:17,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:17,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:17,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:17,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 03:47:17,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:47:17,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:17,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:17,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:17,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:17,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:17,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:17,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:47:17,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:17,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:17,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:17,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:17,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:17,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:17,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:17,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:17,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:17,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:47:17,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:17,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 03:47:17,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:17,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:17,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:47:17,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:17,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 03:47:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:17,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:17,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:17,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:17,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:17,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-14 03:47:17,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:17,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:17,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:47:17,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:17,886 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 201 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:47:17,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342084266] [2020-10-14 03:47:17,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:17,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:17,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454339147] [2020-10-14 03:47:17,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:17,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:17,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:17,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:17,893 INFO L87 Difference]: Start difference. First operand 2417 states and 2788 transitions. Second operand 7 states. [2020-10-14 03:47:20,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:20,556 INFO L93 Difference]: Finished difference Result 6246 states and 7302 transitions. [2020-10-14 03:47:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:20,557 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 279 [2020-10-14 03:47:20,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:20,574 INFO L225 Difference]: With dead ends: 6246 [2020-10-14 03:47:20,574 INFO L226 Difference]: Without dead ends: 3839 [2020-10-14 03:47:20,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:20,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2020-10-14 03:47:20,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 2792. [2020-10-14 03:47:20,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2792 states. [2020-10-14 03:47:20,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 3234 transitions. [2020-10-14 03:47:20,654 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 3234 transitions. Word has length 279 [2020-10-14 03:47:20,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:20,655 INFO L479 AbstractCegarLoop]: Abstraction has 2792 states and 3234 transitions. [2020-10-14 03:47:20,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:20,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 3234 transitions. [2020-10-14 03:47:20,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2020-10-14 03:47:20,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:20,673 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:20,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:47:20,673 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:20,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:20,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1103983355, now seen corresponding path program 1 times [2020-10-14 03:47:20,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:20,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691483448] [2020-10-14 03:47:20,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:20,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:21,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:25,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 683 [2020-10-14 03:47:25,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:25,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 03:47:25,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:25,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 03:47:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:25,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:47:25,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:25,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:25,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:25,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:25,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:47:25,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:25,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:25,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:25,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:25,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:25,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:25,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:25,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:25,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:47:25,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:25,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:47:25,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:25,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:25,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:25,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:25,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:25,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:25,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 03:47:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:25,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:26,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:26,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:47:26,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:26,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 03:47:26,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:26,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:26,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:47:26,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:26,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 03:47:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:26,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:26,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:26,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:26,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:26,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-14 03:47:26,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:26,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:26,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:26,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:26,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 03:47:26,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:26,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-14 03:47:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:26,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:26,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:26,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:26,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:26,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:47:26,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:26,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:26,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:26,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:26,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:26,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:26,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2020-10-14 03:47:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:26,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:26,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:26,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:47:26,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:26,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 03:47:26,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:26,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:26,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:47:26,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:26,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 434 proven. 248 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2020-10-14 03:47:27,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691483448] [2020-10-14 03:47:27,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:27,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:47:27,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746320296] [2020-10-14 03:47:27,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:47:27,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:27,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:47:27,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:47:27,559 INFO L87 Difference]: Start difference. First operand 2792 states and 3234 transitions. Second operand 8 states. [2020-10-14 03:47:31,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:31,762 INFO L93 Difference]: Finished difference Result 8012 states and 9403 transitions. [2020-10-14 03:47:31,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:47:31,763 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 665 [2020-10-14 03:47:31,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:31,786 INFO L225 Difference]: With dead ends: 8012 [2020-10-14 03:47:31,786 INFO L226 Difference]: Without dead ends: 5226 [2020-10-14 03:47:31,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:47:31,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5226 states. [2020-10-14 03:47:31,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5226 to 5206. [2020-10-14 03:47:31,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5206 states. [2020-10-14 03:47:31,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5206 states to 5206 states and 5870 transitions. [2020-10-14 03:47:31,932 INFO L78 Accepts]: Start accepts. Automaton has 5206 states and 5870 transitions. Word has length 665 [2020-10-14 03:47:31,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:31,933 INFO L479 AbstractCegarLoop]: Abstraction has 5206 states and 5870 transitions. [2020-10-14 03:47:31,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:47:31,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5206 states and 5870 transitions. [2020-10-14 03:47:31,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2020-10-14 03:47:31,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:31,958 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:31,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:47:31,959 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:31,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:31,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1710901627, now seen corresponding path program 1 times [2020-10-14 03:47:31,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:31,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477523035] [2020-10-14 03:47:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:32,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:32,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:32,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:33,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:37,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:37,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 702 [2020-10-14 03:47:37,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:37,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 03:47:37,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:37,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:37,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:37,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 03:47:37,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:47:37,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:37,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:37,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:37,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:37,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:37,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:37,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:47:37,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:37,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:37,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:37,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:37,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:37,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:37,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:47:37,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:47:37,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:37,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:37,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:37,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:37,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 03:47:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:37,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:37,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:37,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:47:37,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:37,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 03:47:37,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:37,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:37,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:37,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:47:37,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:37,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 03:47:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:37,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:37,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:37,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:47:37,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:37,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-14 03:47:37,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:37,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:37,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:37,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:37,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:47:37,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:38,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2020-10-14 03:47:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:38,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:38,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:38,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:47:38,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:38,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:47:38,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:38,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:38,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:38,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:47:38,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:38,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 379 proven. 174 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2020-10-14 03:47:38,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477523035] [2020-10-14 03:47:38,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:38,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:38,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282093496] [2020-10-14 03:47:38,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:38,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:38,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:38,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:38,683 INFO L87 Difference]: Start difference. First operand 5206 states and 5870 transitions. Second operand 7 states. [2020-10-14 03:47:41,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:41,687 INFO L93 Difference]: Finished difference Result 10428 states and 11774 transitions. [2020-10-14 03:47:41,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:41,687 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 686 [2020-10-14 03:47:41,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:41,707 INFO L225 Difference]: With dead ends: 10428 [2020-10-14 03:47:41,707 INFO L226 Difference]: Without dead ends: 5228 [2020-10-14 03:47:41,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:47:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5228 states. [2020-10-14 03:47:41,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5228 to 5210. [2020-10-14 03:47:41,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5210 states. [2020-10-14 03:47:41,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 5210 states and 5872 transitions. [2020-10-14 03:47:41,829 INFO L78 Accepts]: Start accepts. Automaton has 5210 states and 5872 transitions. Word has length 686 [2020-10-14 03:47:41,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:41,830 INFO L479 AbstractCegarLoop]: Abstraction has 5210 states and 5872 transitions. [2020-10-14 03:47:41,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:41,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5210 states and 5872 transitions. [2020-10-14 03:47:41,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2020-10-14 03:47:41,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:41,846 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:41,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:47:41,847 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:41,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:41,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1749927520, now seen corresponding path program 1 times [2020-10-14 03:47:41,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:41,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784315868] [2020-10-14 03:47:41,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:41,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:41,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:42,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:46,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:46,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:46,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 712 [2020-10-14 03:47:46,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:46,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 03:47:46,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:46,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 03:47:46,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:47:46,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:46,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:46,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:47,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:47,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:47,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:47,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:47,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:47,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:47,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:47,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:47,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:47:47,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:47,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:47:47,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:47,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:47,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:47,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:47,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:47:47,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:47,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 03:47:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:47,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:47,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:47,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:47,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 03:47:47,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:47,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:47,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:47,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:47,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 03:47:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:47,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:47,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:47,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:47,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:47:47,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:47,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:47,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:47,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:47:47,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:47,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:47,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-10-14 03:47:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:47,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:47,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:47,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:47,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:47:47,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:47,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:47,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:47,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:47,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:47,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:47,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2020-10-14 03:47:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:47,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:47,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:47:47,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:47,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:47:47,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:47,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:47:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:47,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:47,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1269 backedges. 313 proven. 389 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2020-10-14 03:47:47,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784315868] [2020-10-14 03:47:47,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:47,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:47,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434047041] [2020-10-14 03:47:47,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:47,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:47,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:47,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:47,738 INFO L87 Difference]: Start difference. First operand 5210 states and 5872 transitions. Second operand 7 states. [2020-10-14 03:47:51,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:51,494 INFO L93 Difference]: Finished difference Result 14956 states and 17705 transitions. [2020-10-14 03:47:51,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:51,496 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 694 [2020-10-14 03:47:51,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:51,551 INFO L225 Difference]: With dead ends: 14956 [2020-10-14 03:47:51,551 INFO L226 Difference]: Without dead ends: 9752 [2020-10-14 03:47:51,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:47:51,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9752 states. [2020-10-14 03:47:51,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9752 to 9289. [2020-10-14 03:47:51,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9289 states. [2020-10-14 03:47:51,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9289 states to 9289 states and 10416 transitions. [2020-10-14 03:47:51,779 INFO L78 Accepts]: Start accepts. Automaton has 9289 states and 10416 transitions. Word has length 694 [2020-10-14 03:47:51,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:51,780 INFO L479 AbstractCegarLoop]: Abstraction has 9289 states and 10416 transitions. [2020-10-14 03:47:51,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:51,780 INFO L276 IsEmpty]: Start isEmpty. Operand 9289 states and 10416 transitions. [2020-10-14 03:47:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2020-10-14 03:47:51,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:51,804 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:51,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:47:51,805 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:51,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:51,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1041345397, now seen corresponding path program 1 times [2020-10-14 03:47:51,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:51,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546653881] [2020-10-14 03:47:51,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:51,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:51,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:52,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:53,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:56,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:56,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 713 [2020-10-14 03:47:56,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:56,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 03:47:56,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:56,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:56,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:56,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 03:47:56,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:47:56,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:56,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:56,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:56,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:56,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:56,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:56,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:56,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:56,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:56,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:56,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:56,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:56,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:57,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:47:57,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:47:57,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:57,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:57,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:47:57,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:57,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 03:47:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:57,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 03:47:57,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:57,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:57,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-14 03:47:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:57,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 03:47:57,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:57,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:47:57,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:57,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:57,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2020-10-14 03:47:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:57,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 03:47:57,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:57,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:57,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:57,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:57,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2020-10-14 03:47:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:47:57,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 03:47:57,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:47:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 314 proven. 389 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2020-10-14 03:47:58,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546653881] [2020-10-14 03:47:58,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:58,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:58,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875723644] [2020-10-14 03:47:58,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:58,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:58,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:58,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:58,137 INFO L87 Difference]: Start difference. First operand 9289 states and 10416 transitions. Second operand 7 states. [2020-10-14 03:48:01,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:01,347 INFO L93 Difference]: Finished difference Result 20285 states and 22837 transitions. [2020-10-14 03:48:01,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:48:01,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 695 [2020-10-14 03:48:01,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:01,378 INFO L225 Difference]: With dead ends: 20285 [2020-10-14 03:48:01,378 INFO L226 Difference]: Without dead ends: 11002 [2020-10-14 03:48:01,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:01,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2020-10-14 03:48:01,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 10653. [2020-10-14 03:48:01,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10653 states. [2020-10-14 03:48:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10653 states to 10653 states and 11891 transitions. [2020-10-14 03:48:01,602 INFO L78 Accepts]: Start accepts. Automaton has 10653 states and 11891 transitions. Word has length 695 [2020-10-14 03:48:01,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:01,603 INFO L479 AbstractCegarLoop]: Abstraction has 10653 states and 11891 transitions. [2020-10-14 03:48:01,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 10653 states and 11891 transitions. [2020-10-14 03:48:01,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2020-10-14 03:48:01,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:01,628 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:01,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:48:01,629 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:01,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:01,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1621522284, now seen corresponding path program 1 times [2020-10-14 03:48:01,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:01,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060629537] [2020-10-14 03:48:01,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:03,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:04,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:05,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:06,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:06,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 788 [2020-10-14 03:48:06,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:06,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 03:48:06,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:06,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-14 03:48:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:48:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:06,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:06,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:06,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:06,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:06,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:06,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:06,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:06,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:06,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:06,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:06,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:06,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:06,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:06,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:07,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:07,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:48:07,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:48:07,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:07,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:48:07,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:07,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 03:48:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:07,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:07,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:07,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:07,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:07,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-14 03:48:07,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:07,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:48:07,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:07,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2020-10-14 03:48:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:07,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:07,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:07,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:48:07,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:07,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:48:07,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:07,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:48:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:07,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 337 proven. 251 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-14 03:48:08,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060629537] [2020-10-14 03:48:08,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:08,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:08,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419256170] [2020-10-14 03:48:08,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:08,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:08,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:08,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:08,571 INFO L87 Difference]: Start difference. First operand 10653 states and 11891 transitions. Second operand 7 states. [2020-10-14 03:48:11,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:11,911 INFO L93 Difference]: Finished difference Result 22028 states and 24645 transitions. [2020-10-14 03:48:11,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:48:11,912 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 774 [2020-10-14 03:48:11,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:11,944 INFO L225 Difference]: With dead ends: 22028 [2020-10-14 03:48:11,945 INFO L226 Difference]: Without dead ends: 11381 [2020-10-14 03:48:11,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:48:11,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11381 states. [2020-10-14 03:48:12,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11381 to 11333. [2020-10-14 03:48:12,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11333 states. [2020-10-14 03:48:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11333 states to 11333 states and 12588 transitions. [2020-10-14 03:48:12,174 INFO L78 Accepts]: Start accepts. Automaton has 11333 states and 12588 transitions. Word has length 774 [2020-10-14 03:48:12,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:12,176 INFO L479 AbstractCegarLoop]: Abstraction has 11333 states and 12588 transitions. [2020-10-14 03:48:12,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:12,176 INFO L276 IsEmpty]: Start isEmpty. Operand 11333 states and 12588 transitions. [2020-10-14 03:48:12,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2020-10-14 03:48:12,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:12,208 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:12,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:48:12,208 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:12,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:12,209 INFO L82 PathProgramCache]: Analyzing trace with hash -777443915, now seen corresponding path program 1 times [2020-10-14 03:48:12,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:12,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284927343] [2020-10-14 03:48:12,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:12,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:14,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:17,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:17,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 817 [2020-10-14 03:48:17,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:17,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-14 03:48:17,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:17,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:48:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:48:17,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:17,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:17,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:17,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:17,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:17,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:17,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:17,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:17,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:17,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:17,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:17,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:17,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:17,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:17,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:17,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:17,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:48:17,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:17,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:48:17,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:17,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:17,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:48:17,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:17,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 03:48:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:17,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:17,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:17,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:48:17,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:17,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:48:17,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:17,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:17,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:17,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:17,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:48:17,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:17,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:48:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:17,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:17,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:17,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:48:17,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:17,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:48:17,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:17,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:17,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:17,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:48:17,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:17,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:17,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2020-10-14 03:48:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:17,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:17,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:17,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:17,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:17,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:48:17,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:17,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:17,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:17,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:17,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:17,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:17,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2020-10-14 03:48:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:17,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:17,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:17,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:48:17,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:17,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 03:48:17,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:17,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:48:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:17,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1373 backedges. 339 proven. 389 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2020-10-14 03:48:18,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284927343] [2020-10-14 03:48:18,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:18,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:18,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716224562] [2020-10-14 03:48:18,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:18,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:18,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:18,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:18,217 INFO L87 Difference]: Start difference. First operand 11333 states and 12588 transitions. Second operand 7 states. [2020-10-14 03:48:23,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:23,798 INFO L93 Difference]: Finished difference Result 26060 states and 29245 transitions. [2020-10-14 03:48:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:23,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 799 [2020-10-14 03:48:23,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:23,853 INFO L225 Difference]: With dead ends: 26060 [2020-10-14 03:48:23,853 INFO L226 Difference]: Without dead ends: 14733 [2020-10-14 03:48:23,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:48:23,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14733 states. [2020-10-14 03:48:24,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14733 to 14723. [2020-10-14 03:48:24,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14723 states. [2020-10-14 03:48:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14723 states to 14723 states and 16488 transitions. [2020-10-14 03:48:24,140 INFO L78 Accepts]: Start accepts. Automaton has 14723 states and 16488 transitions. Word has length 799 [2020-10-14 03:48:24,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:24,141 INFO L479 AbstractCegarLoop]: Abstraction has 14723 states and 16488 transitions. [2020-10-14 03:48:24,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:24,141 INFO L276 IsEmpty]: Start isEmpty. Operand 14723 states and 16488 transitions. [2020-10-14 03:48:24,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2020-10-14 03:48:24,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:24,173 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:24,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:48:24,173 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:24,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:24,174 INFO L82 PathProgramCache]: Analyzing trace with hash -302334773, now seen corresponding path program 1 times [2020-10-14 03:48:24,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:24,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403365965] [2020-10-14 03:48:24,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:24,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 871 [2020-10-14 03:48:29,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 03:48:29,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-10-14 03:48:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:48:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:29,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:29,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:29,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:29,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 03:48:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:48:29,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:48:29,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:29,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:48:29,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-14 03:48:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:48:29,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-14 03:48:29,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:48:29,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2020-10-14 03:48:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:29,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:48:29,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:29,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 553 [2020-10-14 03:48:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:30,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:30,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:30,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:48:30,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:30,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 03:48:30,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:30,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:30,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:30,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:48:30,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:30,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:30,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 435 proven. 356 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2020-10-14 03:48:30,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403365965] [2020-10-14 03:48:30,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:30,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:30,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282798413] [2020-10-14 03:48:30,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:30,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:30,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:30,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:30,751 INFO L87 Difference]: Start difference. First operand 14723 states and 16488 transitions. Second operand 7 states. [2020-10-14 03:48:34,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:34,614 INFO L93 Difference]: Finished difference Result 29969 states and 34423 transitions. [2020-10-14 03:48:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:34,615 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 853 [2020-10-14 03:48:34,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:34,655 INFO L225 Difference]: With dead ends: 29969 [2020-10-14 03:48:34,656 INFO L226 Difference]: Without dead ends: 15252 [2020-10-14 03:48:34,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:34,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15252 states. [2020-10-14 03:48:34,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15252 to 15062. [2020-10-14 03:48:34,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15062 states. [2020-10-14 03:48:34,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15062 states to 15062 states and 16848 transitions. [2020-10-14 03:48:34,969 INFO L78 Accepts]: Start accepts. Automaton has 15062 states and 16848 transitions. Word has length 853 [2020-10-14 03:48:34,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:34,970 INFO L479 AbstractCegarLoop]: Abstraction has 15062 states and 16848 transitions. [2020-10-14 03:48:34,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:34,970 INFO L276 IsEmpty]: Start isEmpty. Operand 15062 states and 16848 transitions. [2020-10-14 03:48:35,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 864 [2020-10-14 03:48:35,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:35,002 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:35,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:48:35,002 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:35,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:35,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1019546890, now seen corresponding path program 1 times [2020-10-14 03:48:35,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:35,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [999068164] [2020-10-14 03:48:35,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:35,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:35,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:35,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:40,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:40,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 879 [2020-10-14 03:48:40,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:48:40,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 03:48:40,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:40,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-14 03:48:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:48:40,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:40,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:40,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:40,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:40,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:40,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:40,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:40,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:40,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:40,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:40,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:40,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:40,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:40,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:40,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:40,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:40,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:48:40,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:40,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 03:48:40,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:40,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:40,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:40,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:40,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:48:40,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:40,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 03:48:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:40,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:40,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:40,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:48:40,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:40,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 03:48:40,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:40,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:40,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:48:40,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:40,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2020-10-14 03:48:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:40,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:40,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:40,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:40,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:40,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:48:40,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:40,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:40,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:40,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:40,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:40,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:40,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2020-10-14 03:48:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:40,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:40,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:40,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:48:40,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:40,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:48:40,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:40,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:40,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:40,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:48:40,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:40,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 388 proven. 356 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2020-10-14 03:48:41,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [999068164] [2020-10-14 03:48:41,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:41,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:41,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283207068] [2020-10-14 03:48:41,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:41,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:41,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:41,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:41,329 INFO L87 Difference]: Start difference. First operand 15062 states and 16848 transitions. Second operand 7 states. [2020-10-14 03:48:44,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:44,258 INFO L93 Difference]: Finished difference Result 30138 states and 33785 transitions. [2020-10-14 03:48:44,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:48:44,259 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 863 [2020-10-14 03:48:44,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:44,290 INFO L225 Difference]: With dead ends: 30138 [2020-10-14 03:48:44,290 INFO L226 Difference]: Without dead ends: 15082 [2020-10-14 03:48:44,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:44,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15082 states. [2020-10-14 03:48:44,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15082 to 15064. [2020-10-14 03:48:44,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15064 states. [2020-10-14 03:48:44,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15064 states to 15064 states and 16636 transitions. [2020-10-14 03:48:44,547 INFO L78 Accepts]: Start accepts. Automaton has 15064 states and 16636 transitions. Word has length 863 [2020-10-14 03:48:44,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:44,548 INFO L479 AbstractCegarLoop]: Abstraction has 15064 states and 16636 transitions. [2020-10-14 03:48:44,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:44,548 INFO L276 IsEmpty]: Start isEmpty. Operand 15064 states and 16636 transitions. [2020-10-14 03:48:44,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 979 [2020-10-14 03:48:44,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:44,584 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:44,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:48:44,584 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:44,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:44,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1635494617, now seen corresponding path program 1 times [2020-10-14 03:48:44,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:44,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055526135] [2020-10-14 03:48:44,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:44,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:44,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 994 [2020-10-14 03:48:49,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:48:49,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 03:48:49,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:49,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 03:48:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:48:49,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:49,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:49,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:49,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:49,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:49,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:48:49,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:48:49,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:49,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:49,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:48:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:50,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:50,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:48:50,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:50,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 03:48:50,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:50,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 03:48:50,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:50,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 03:48:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:50,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:50,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:50,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:50,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:50,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 03:48:50,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:50,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:50,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:50,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:50,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:48:50,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:50,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 03:48:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:50,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:50,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:50,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:48:50,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:50,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 03:48:50,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:50,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:50,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:50,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:48:50,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:50,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:51,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1363 backedges. 592 proven. 253 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2020-10-14 03:48:51,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055526135] [2020-10-14 03:48:51,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:51,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:51,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996203668] [2020-10-14 03:48:51,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:51,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:51,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:51,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:51,521 INFO L87 Difference]: Start difference. First operand 15064 states and 16636 transitions. Second operand 7 states. [2020-10-14 03:48:55,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:55,820 INFO L93 Difference]: Finished difference Result 33401 states and 37978 transitions. [2020-10-14 03:48:55,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:48:55,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 978 [2020-10-14 03:48:55,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:55,859 INFO L225 Difference]: With dead ends: 33401 [2020-10-14 03:48:55,859 INFO L226 Difference]: Without dead ends: 18343 [2020-10-14 03:48:55,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:55,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18343 states. [2020-10-14 03:48:56,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18343 to 18119. [2020-10-14 03:48:56,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18119 states. [2020-10-14 03:48:56,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18119 states to 18119 states and 20001 transitions. [2020-10-14 03:48:56,198 INFO L78 Accepts]: Start accepts. Automaton has 18119 states and 20001 transitions. Word has length 978 [2020-10-14 03:48:56,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:56,199 INFO L479 AbstractCegarLoop]: Abstraction has 18119 states and 20001 transitions. [2020-10-14 03:48:56,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:56,199 INFO L276 IsEmpty]: Start isEmpty. Operand 18119 states and 20001 transitions. [2020-10-14 03:48:56,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1107 [2020-10-14 03:48:56,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:56,228 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:56,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:48:56,228 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:56,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:56,229 INFO L82 PathProgramCache]: Analyzing trace with hash -2025213799, now seen corresponding path program 1 times [2020-10-14 03:48:56,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:56,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267183580] [2020-10-14 03:48:56,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:56,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:56,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:57,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:01,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:01,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1122 [2020-10-14 03:49:01,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:49:01,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 03:49:01,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:01,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:49:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:49:01,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:01,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:01,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:01,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:01,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:01,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:01,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:01,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:01,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:01,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:01,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:01,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:01,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:01,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:01,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:01,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:49:01,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:01,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:01,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:01,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:01,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:01,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:01,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:01,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:01,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 03:49:01,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:01,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:01,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:49:01,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:01,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:49:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:01,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:02,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:02,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:02,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:02,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-14 03:49:02,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:02,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:02,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:02,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:02,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:49:02,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:02,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2020-10-14 03:49:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:02,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:02,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:02,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:49:02,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:02,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:49:02,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:02,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:02,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:02,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:49:02,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:02,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1716 backedges. 717 proven. 253 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2020-10-14 03:49:03,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267183580] [2020-10-14 03:49:03,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:03,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:03,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496090147] [2020-10-14 03:49:03,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:03,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:03,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:03,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:03,361 INFO L87 Difference]: Start difference. First operand 18119 states and 20001 transitions. Second operand 7 states. [2020-10-14 03:49:08,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:08,187 INFO L93 Difference]: Finished difference Result 37247 states and 41065 transitions. [2020-10-14 03:49:08,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:49:08,188 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1106 [2020-10-14 03:49:08,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:08,219 INFO L225 Difference]: With dead ends: 37247 [2020-10-14 03:49:08,219 INFO L226 Difference]: Without dead ends: 19134 [2020-10-14 03:49:08,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:49:08,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19134 states. [2020-10-14 03:49:08,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19134 to 18119. [2020-10-14 03:49:08,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18119 states. [2020-10-14 03:49:08,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18119 states to 18119 states and 19993 transitions. [2020-10-14 03:49:08,510 INFO L78 Accepts]: Start accepts. Automaton has 18119 states and 19993 transitions. Word has length 1106 [2020-10-14 03:49:08,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:08,512 INFO L479 AbstractCegarLoop]: Abstraction has 18119 states and 19993 transitions. [2020-10-14 03:49:08,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:08,512 INFO L276 IsEmpty]: Start isEmpty. Operand 18119 states and 19993 transitions. [2020-10-14 03:49:08,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1134 [2020-10-14 03:49:08,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:08,541 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:08,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:49:08,542 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:08,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:08,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1971200954, now seen corresponding path program 1 times [2020-10-14 03:49:08,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:08,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307246538] [2020-10-14 03:49:08,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:13,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:13,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1155 [2020-10-14 03:49:13,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:13,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 03:49:13,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:13,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 705 [2020-10-14 03:49:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 03:49:13,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:13,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:13,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:13,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:13,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:13,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:13,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:49:13,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:13,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:13,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:13,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:13,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:13,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:13,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:13,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:13,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:13,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:49:13,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:13,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:49:13,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:13,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:13,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:13,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:13,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:13,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:13,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:49:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:13,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:13,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:13,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:49:13,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:13,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:49:13,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:13,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:13,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:13,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:13,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:13,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:13,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:49:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:13,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:13,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:13,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:49:13,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:13,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 03:49:13,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:13,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:13,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:13,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:13,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:13,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:13,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:13,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:13,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:13,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:49:13,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:13,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:49:13,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:13,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:13,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:14,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2020-10-14 03:49:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:14,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:14,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:14,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:14,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:14,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:49:14,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:14,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:14,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:14,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:14,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:49:14,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:14,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2020-10-14 03:49:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:14,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:14,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:14,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 03:49:14,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:14,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 03:49:14,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:14,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:49:14,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:14,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 833 [2020-10-14 03:49:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:14,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:14,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:14,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:49:14,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:14,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:49:14,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:14,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:49:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:14,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2227 backedges. 799 proven. 137 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2020-10-14 03:49:15,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307246538] [2020-10-14 03:49:15,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:15,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:15,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606154932] [2020-10-14 03:49:15,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:15,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:15,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:15,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:15,005 INFO L87 Difference]: Start difference. First operand 18119 states and 19993 transitions. Second operand 7 states. [2020-10-14 03:49:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:18,837 INFO L93 Difference]: Finished difference Result 37988 states and 42000 transitions. [2020-10-14 03:49:18,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:49:18,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1133 [2020-10-14 03:49:18,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:18,866 INFO L225 Difference]: With dead ends: 37988 [2020-10-14 03:49:18,866 INFO L226 Difference]: Without dead ends: 17821 [2020-10-14 03:49:18,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:49:18,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17821 states. [2020-10-14 03:49:19,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17821 to 17759. [2020-10-14 03:49:19,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17759 states. [2020-10-14 03:49:19,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17759 states to 17759 states and 18837 transitions. [2020-10-14 03:49:19,121 INFO L78 Accepts]: Start accepts. Automaton has 17759 states and 18837 transitions. Word has length 1133 [2020-10-14 03:49:19,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:19,122 INFO L479 AbstractCegarLoop]: Abstraction has 17759 states and 18837 transitions. [2020-10-14 03:49:19,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:19,122 INFO L276 IsEmpty]: Start isEmpty. Operand 17759 states and 18837 transitions. [2020-10-14 03:49:19,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1167 [2020-10-14 03:49:19,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:19,150 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:19,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:49:19,151 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:19,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:19,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1405017926, now seen corresponding path program 1 times [2020-10-14 03:49:19,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:19,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413391032] [2020-10-14 03:49:19,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:19,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:19,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:19,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:19,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:24,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:24,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1184 [2020-10-14 03:49:24,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-14 03:49:24,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:24,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 599 [2020-10-14 03:49:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:49:24,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:24,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:24,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:24,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:24,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:24,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:24,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:24,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:24,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:24,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:24,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:24,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:24,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:24,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:24,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:24,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:24,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:49:24,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:24,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:49:24,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:24,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:24,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:24,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:24,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:24,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:24,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:49:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:24,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:24,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:24,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:24,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:24,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:49:24,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:24,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:24,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:24,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:24,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 03:49:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:24,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:24,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:24,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:24,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:24,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:49:24,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:24,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:24,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:24,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:24,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 03:49:24,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:24,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2020-10-14 03:49:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:24,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:25,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:25,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:25,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:25,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-14 03:49:25,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:25,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:49:25,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:25,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 866 [2020-10-14 03:49:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:25,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:25,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:25,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:49:25,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:25,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:49:25,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:25,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:49:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:25,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:26,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2109 backedges. 833 proven. 253 refuted. 0 times theorem prover too weak. 1023 trivial. 0 not checked. [2020-10-14 03:49:26,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413391032] [2020-10-14 03:49:26,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:26,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:26,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060716253] [2020-10-14 03:49:26,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:26,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:26,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:26,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:26,085 INFO L87 Difference]: Start difference. First operand 17759 states and 18837 transitions. Second operand 7 states. [2020-10-14 03:49:29,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:29,884 INFO L93 Difference]: Finished difference Result 36878 states and 39194 transitions. [2020-10-14 03:49:29,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:49:29,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1166 [2020-10-14 03:49:29,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:29,927 INFO L225 Difference]: With dead ends: 36878 [2020-10-14 03:49:29,927 INFO L226 Difference]: Without dead ends: 19125 [2020-10-14 03:49:29,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:29,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19125 states. [2020-10-14 03:49:30,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19125 to 19113. [2020-10-14 03:49:30,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19113 states. [2020-10-14 03:49:30,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19113 states to 19113 states and 20285 transitions. [2020-10-14 03:49:30,194 INFO L78 Accepts]: Start accepts. Automaton has 19113 states and 20285 transitions. Word has length 1166 [2020-10-14 03:49:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:30,195 INFO L479 AbstractCegarLoop]: Abstraction has 19113 states and 20285 transitions. [2020-10-14 03:49:30,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:30,195 INFO L276 IsEmpty]: Start isEmpty. Operand 19113 states and 20285 transitions. [2020-10-14 03:49:30,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1187 [2020-10-14 03:49:30,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:30,221 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:30,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:49:30,221 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:30,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:30,222 INFO L82 PathProgramCache]: Analyzing trace with hash 649103584, now seen corresponding path program 1 times [2020-10-14 03:49:30,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:30,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685966232] [2020-10-14 03:49:30,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:30,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:30,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:30,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:31,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:35,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:35,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1208 [2020-10-14 03:49:35,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:35,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 03:49:35,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:35,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 03:49:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:49:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:35,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:35,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:35,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:35,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:35,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:35,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:49:35,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:35,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:35,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:35,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:35,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:35,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:35,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:35,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:35,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:35,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:49:35,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:35,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:49:35,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:35,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:35,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:35,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:35,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:49:35,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:35,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:49:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:35,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:35,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:35,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:49:35,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:35,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:49:35,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:35,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:35,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:35,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:35,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:49:35,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:35,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:49:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:35,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:35,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:35,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:49:35,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:35,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:49:35,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:35,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:49:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:35,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:35,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:35,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:35,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:35,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:49:35,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:35,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:49:35,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:35,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:35,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2020-10-14 03:49:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:35,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:36,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:49:36,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:36,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 03:49:36,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:36,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:49:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:36,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:36,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:36,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:36,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:49:36,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:36,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:49:36,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:36,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:36,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:36,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:36,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:36,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:36,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 886 [2020-10-14 03:49:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:36,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:36,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:49:36,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:36,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:49:36,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:36,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:36,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:36,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:49:36,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:36,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:36,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1909 backedges. 359 proven. 338 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2020-10-14 03:49:36,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685966232] [2020-10-14 03:49:36,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:36,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:49:36,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422254163] [2020-10-14 03:49:36,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:49:36,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:36,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:49:36,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:49:36,884 INFO L87 Difference]: Start difference. First operand 19113 states and 20285 transitions. Second operand 8 states. [2020-10-14 03:49:40,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:40,155 INFO L93 Difference]: Finished difference Result 38242 states and 40627 transitions. [2020-10-14 03:49:40,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:49:40,156 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1186 [2020-10-14 03:49:40,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:40,198 INFO L225 Difference]: With dead ends: 38242 [2020-10-14 03:49:40,199 INFO L226 Difference]: Without dead ends: 19135 [2020-10-14 03:49:40,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:40,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19135 states. [2020-10-14 03:49:40,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19135 to 19111. [2020-10-14 03:49:40,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19111 states. [2020-10-14 03:49:40,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19111 states to 19111 states and 20235 transitions. [2020-10-14 03:49:40,576 INFO L78 Accepts]: Start accepts. Automaton has 19111 states and 20235 transitions. Word has length 1186 [2020-10-14 03:49:40,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:40,577 INFO L479 AbstractCegarLoop]: Abstraction has 19111 states and 20235 transitions. [2020-10-14 03:49:40,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:49:40,577 INFO L276 IsEmpty]: Start isEmpty. Operand 19111 states and 20235 transitions. [2020-10-14 03:49:40,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2020-10-14 03:49:40,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:40,624 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:49:40,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:49:40,624 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:40,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:40,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1547773679, now seen corresponding path program 1 times [2020-10-14 03:49:40,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:40,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568949134] [2020-10-14 03:49:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:40,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:41,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:41,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:41,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:45,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:45,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1236 [2020-10-14 03:49:45,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:45,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-14 03:49:45,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:45,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:45,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:45,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 03:49:45,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:49:45,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:45,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:45,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:45,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:45,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:45,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:45,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:45,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:45,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:45,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:45,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:45,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:45,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:45,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:46,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:46,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:46,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:49:46,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:46,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 03:49:46,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:46,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:49:46,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:46,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:49:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:46,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:46,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:46,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:46,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 03:49:46,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:46,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:49:46,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:46,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 03:49:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:46,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:46,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:46,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:46,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:46,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:49:46,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:46,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:46,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:46,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:49:46,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:46,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:46,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2020-10-14 03:49:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:46,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:46,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:46,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:46,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:46,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:49:46,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:46,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:46,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:46,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:49:46,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:46,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:46,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2020-10-14 03:49:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:46,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:46,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:46,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:49:46,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:46,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:49:46,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:46,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:46,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:46,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:49:46,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:46,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:46,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-14 03:49:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:47,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:47,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:47,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:49:47,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:47,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:49:47,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:47,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:49:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:47,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2618 backedges. 430 proven. 755 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2020-10-14 03:49:48,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568949134] [2020-10-14 03:49:48,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:48,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:48,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347149949] [2020-10-14 03:49:48,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:48,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:48,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:48,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:48,292 INFO L87 Difference]: Start difference. First operand 19111 states and 20235 transitions. Second operand 7 states. [2020-10-14 03:49:52,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:52,260 INFO L93 Difference]: Finished difference Result 39251 states and 41622 transitions. [2020-10-14 03:49:52,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:49:52,261 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1216 [2020-10-14 03:49:52,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:52,304 INFO L225 Difference]: With dead ends: 39251 [2020-10-14 03:49:52,304 INFO L226 Difference]: Without dead ends: 20146 [2020-10-14 03:49:52,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:49:52,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20146 states. [2020-10-14 03:49:52,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20146 to 20128. [2020-10-14 03:49:52,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20128 states. [2020-10-14 03:49:52,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20128 states to 20128 states and 21329 transitions. [2020-10-14 03:49:52,524 INFO L78 Accepts]: Start accepts. Automaton has 20128 states and 21329 transitions. Word has length 1216 [2020-10-14 03:49:52,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:52,524 INFO L479 AbstractCegarLoop]: Abstraction has 20128 states and 21329 transitions. [2020-10-14 03:49:52,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:52,524 INFO L276 IsEmpty]: Start isEmpty. Operand 20128 states and 21329 transitions. [2020-10-14 03:49:52,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1226 [2020-10-14 03:49:52,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:52,554 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:52,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:49:52,554 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:52,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:52,555 INFO L82 PathProgramCache]: Analyzing trace with hash -586995757, now seen corresponding path program 1 times [2020-10-14 03:49:52,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:52,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023113611] [2020-10-14 03:49:52,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:52,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:52,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:52,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:53,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:57,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:57,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1247 [2020-10-14 03:49:57,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:57,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 03:49:57,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:57,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:57,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:57,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 722 [2020-10-14 03:49:57,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:49:57,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:57,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:57,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:57,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:57,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:57,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:57,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:49:57,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:57,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:57,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:57,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:57,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:57,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:57,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 03:49:57,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:57,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:49:57,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:57,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:57,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:57,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:57,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:57,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-14 03:49:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:57,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:57,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:57,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:49:57,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:57,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:49:57,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:57,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:57,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:57,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-14 03:49:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:57,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:57,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:57,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:49:57,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:57,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:49:57,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:57,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:57,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:57,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:57,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:57,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:57,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2020-10-14 03:49:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:57,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:58,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:58,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:49:58,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:58,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:49:58,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:58,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:58,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:58,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 03:49:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:58,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:58,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:58,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:58,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:58,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:49:58,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:58,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:58,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:58,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:58,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:49:58,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:58,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 712 [2020-10-14 03:49:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:58,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:58,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:58,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:49:58,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:58,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 03:49:58,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:58,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:58,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:58,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:58,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:49:58,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:58,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 927 [2020-10-14 03:49:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:58,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:58,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:58,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:49:58,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:58,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:49:58,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:58,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:58,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:58,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:49:58,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:58,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3259 backedges. 1058 proven. 214 refuted. 0 times theorem prover too weak. 1987 trivial. 0 not checked. [2020-10-14 03:49:59,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023113611] [2020-10-14 03:49:59,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:59,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:59,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796145489] [2020-10-14 03:49:59,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:59,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:59,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:59,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:59,459 INFO L87 Difference]: Start difference. First operand 20128 states and 21329 transitions. Second operand 7 states. [2020-10-14 03:50:03,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:03,183 INFO L93 Difference]: Finished difference Result 40272 states and 42715 transitions. [2020-10-14 03:50:03,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:50:03,184 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1225 [2020-10-14 03:50:03,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:03,226 INFO L225 Difference]: With dead ends: 40272 [2020-10-14 03:50:03,226 INFO L226 Difference]: Without dead ends: 20150 [2020-10-14 03:50:03,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 03:50:03,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20150 states. [2020-10-14 03:50:03,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20150 to 19791. [2020-10-14 03:50:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19791 states. [2020-10-14 03:50:03,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19791 states to 19791 states and 20960 transitions. [2020-10-14 03:50:03,603 INFO L78 Accepts]: Start accepts. Automaton has 19791 states and 20960 transitions. Word has length 1225 [2020-10-14 03:50:03,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:03,605 INFO L479 AbstractCegarLoop]: Abstraction has 19791 states and 20960 transitions. [2020-10-14 03:50:03,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:03,605 INFO L276 IsEmpty]: Start isEmpty. Operand 19791 states and 20960 transitions. [2020-10-14 03:50:03,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2020-10-14 03:50:03,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:03,642 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:03,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:50:03,643 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:03,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:03,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1160111166, now seen corresponding path program 1 times [2020-10-14 03:50:03,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:03,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366298788] [2020-10-14 03:50:03,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:03,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:03,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:04,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:04,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:08,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:08,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1303 [2020-10-14 03:50:08,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:50:08,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-14 03:50:08,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:08,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:08,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:08,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 718 [2020-10-14 03:50:08,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:50:08,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:08,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:08,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:08,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:08,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:08,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:08,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:50:08,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:08,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:08,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:08,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:08,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:08,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:08,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:08,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:08,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:08,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 03:50:08,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:08,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:50:08,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:08,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:08,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:08,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:09,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-14 03:50:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:09,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:09,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:09,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:50:09,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:09,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:50:09,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:09,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:09,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:09,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:09,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:09,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:09,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-14 03:50:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:09,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:09,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:09,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:50:09,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:09,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:50:09,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:09,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:09,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:09,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:09,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:09,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:09,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2020-10-14 03:50:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:09,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:09,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:09,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:50:09,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:50:09,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:09,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 03:50:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:09,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 710 [2020-10-14 03:50:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:09,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:09,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:09,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:50:09,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:09,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 03:50:09,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:09,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:09,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:09,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:09,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:50:09,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:09,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 983 [2020-10-14 03:50:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:10,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:10,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:10,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:50:10,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:10,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:50:10,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:10,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:10,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:10,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:50:10,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:10,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2833 backedges. 1003 proven. 253 refuted. 0 times theorem prover too weak. 1577 trivial. 0 not checked. [2020-10-14 03:50:11,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366298788] [2020-10-14 03:50:11,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:11,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:11,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251406861] [2020-10-14 03:50:11,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:11,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:11,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:11,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:11,304 INFO L87 Difference]: Start difference. First operand 19791 states and 20960 transitions. Second operand 7 states. [2020-10-14 03:50:15,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:15,424 INFO L93 Difference]: Finished difference Result 39925 states and 42300 transitions. [2020-10-14 03:50:15,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:50:15,425 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1283 [2020-10-14 03:50:15,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:15,467 INFO L225 Difference]: With dead ends: 39925 [2020-10-14 03:50:15,467 INFO L226 Difference]: Without dead ends: 20140 [2020-10-14 03:50:15,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:50:15,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20140 states. [2020-10-14 03:50:15,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20140 to 19454. [2020-10-14 03:50:15,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19454 states. [2020-10-14 03:50:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19454 states to 19454 states and 20612 transitions. [2020-10-14 03:50:15,808 INFO L78 Accepts]: Start accepts. Automaton has 19454 states and 20612 transitions. Word has length 1283 [2020-10-14 03:50:15,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:15,809 INFO L479 AbstractCegarLoop]: Abstraction has 19454 states and 20612 transitions. [2020-10-14 03:50:15,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:15,809 INFO L276 IsEmpty]: Start isEmpty. Operand 19454 states and 20612 transitions. [2020-10-14 03:50:15,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1286 [2020-10-14 03:50:15,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:15,842 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:15,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:50:15,842 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:15,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:15,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1944056101, now seen corresponding path program 1 times [2020-10-14 03:50:15,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:15,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863543306] [2020-10-14 03:50:15,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:15,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:16,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:16,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:16,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking...