/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_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:46:41,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:46:41,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:46:41,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:46:41,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:46:41,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:46:41,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:46:41,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:46:41,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:46:41,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:46:41,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:46:41,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:46:41,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:46:41,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:46:41,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:46:41,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:46:41,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:46:41,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:46:41,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:46:41,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:46:41,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:46:41,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:46:41,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:46:41,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:46:41,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:46:41,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:46:41,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:46:41,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:46:41,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:46:41,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:46:41,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:46:41,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:46:41,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:46:41,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:46:41,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:46:41,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:46:41,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:46:41,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:46:41,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:46:41,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:46:41,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:46:41,658 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 03:46:41,707 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:46:41,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:46:41,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:46:41,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:46:41,714 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:46:41,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:46:41,714 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:46:41,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:46:41,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:46:41,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:46:41,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:46:41,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:46:41,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:46:41,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:46:41,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:46:41,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:46:41,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:46:41,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:46:41,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:46:41,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:46:41,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:46:41,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:46:41,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:46:41,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:46:41,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:46:41,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:46:41,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:46:41,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:46:41,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:46:41,720 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 03:46:42,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:46:42,051 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:46:42,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:46:42,059 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:46:42,060 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:46:42,061 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label33.c [2020-10-14 03:46:42,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bc02b6a4/8d1c233426684e40b27e68a6ebbff195/FLAG25432397a [2020-10-14 03:46:42,796 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:46:42,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label33.c [2020-10-14 03:46:42,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bc02b6a4/8d1c233426684e40b27e68a6ebbff195/FLAG25432397a [2020-10-14 03:46:42,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bc02b6a4/8d1c233426684e40b27e68a6ebbff195 [2020-10-14 03:46:42,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:46:42,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:46:42,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:42,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:46:42,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:46:42,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:42" (1/1) ... [2020-10-14 03:46:43,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5301fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:42, skipping insertion in model container [2020-10-14 03:46:43,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:42" (1/1) ... [2020-10-14 03:46:43,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:46:43,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:46:43,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:43,905 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:46:44,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:44,308 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:46:44,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:44 WrapperNode [2020-10-14 03:46:44,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:44,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:46:44,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:46:44,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:46:44,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:44" (1/1) ... [2020-10-14 03:46:44,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:44" (1/1) ... [2020-10-14 03:46:44,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:44" (1/1) ... [2020-10-14 03:46:44,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:44" (1/1) ... [2020-10-14 03:46:44,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:44" (1/1) ... [2020-10-14 03:46:44,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:44" (1/1) ... [2020-10-14 03:46:44,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:44" (1/1) ... [2020-10-14 03:46:44,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:46:44,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:46:44,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:46:44,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:46:44,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:44" (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 03:46:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:46:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:46:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:46:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:46:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:46:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:46:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:46:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:46:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:46:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:46:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:46:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:46:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:46:46,932 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:46:46,933 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:46:46,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:46:46 BoogieIcfgContainer [2020-10-14 03:46:46,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:46:46,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:46:46,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:46:46,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:46:46,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:46:42" (1/3) ... [2020-10-14 03:46:46,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a788e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:46:46, skipping insertion in model container [2020-10-14 03:46:46,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:44" (2/3) ... [2020-10-14 03:46:46,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a788e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:46:46, skipping insertion in model container [2020-10-14 03:46:46,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:46:46" (3/3) ... [2020-10-14 03:46:46,950 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label33.c [2020-10-14 03:46:46,961 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:46:46,969 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:46:46,984 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:46:47,011 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:46:47,012 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:46:47,012 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:46:47,012 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:46:47,012 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:46:47,012 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:46:47,012 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:46:47,013 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:46:47,039 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:46:47,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 03:46:47,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:47,048 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] [2020-10-14 03:46:47,049 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:47,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:47,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1586661862, now seen corresponding path program 1 times [2020-10-14 03:46:47,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:47,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519180152] [2020-10-14 03:46:47,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:47,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:47,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:47,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 03:46:47,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:47,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-14 03:46:47,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:47,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:46:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:46:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 03:46:47,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:46:47,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:47,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:47,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:47,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:47,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:47,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:46:47,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:47,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:47,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:47,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:47,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:46:47,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:47,735 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 03:46:47,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519180152] [2020-10-14 03:46:47,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:46:47,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:46:47,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428329410] [2020-10-14 03:46:47,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:46:47,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:47,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:46:47,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:46:47,762 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:46:51,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:51,226 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 03:46:51,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:46:51,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-14 03:46:51,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:51,251 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:46:51,251 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:46:51,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:46:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:46:51,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 03:46:51,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 03:46:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1035 transitions. [2020-10-14 03:46:51,396 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1035 transitions. Word has length 33 [2020-10-14 03:46:51,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:51,397 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1035 transitions. [2020-10-14 03:46:51,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:46:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1035 transitions. [2020-10-14 03:46:51,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 03:46:51,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:51,405 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:51,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:46:51,406 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:51,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:51,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1035637570, now seen corresponding path program 1 times [2020-10-14 03:46:51,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:51,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956306729] [2020-10-14 03:46:51,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:51,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:51,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:52,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:52,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:52,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 03:46:52,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:46:52,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-10-14 03:46:52,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:52,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 03:46:52,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 03:46:52,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:46:52,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:52,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:52,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:52,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:52,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:52,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:52,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:52,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:52,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:52,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:52,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:52,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:52,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:52,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:52,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:52,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:46:52,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:52,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:46:52,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:52,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:52,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 03:46:52,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:52,746 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:46:52,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956306729] [2020-10-14 03:46:52,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:52,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:46:52,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946483831] [2020-10-14 03:46:52,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:46:52,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:52,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:46:52,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:46:52,750 INFO L87 Difference]: Start difference. First operand 689 states and 1035 transitions. Second operand 6 states. [2020-10-14 03:46:57,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:57,680 INFO L93 Difference]: Finished difference Result 2747 states and 4202 transitions. [2020-10-14 03:46:57,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:46:57,681 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2020-10-14 03:46:57,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:57,693 INFO L225 Difference]: With dead ends: 2747 [2020-10-14 03:46:57,693 INFO L226 Difference]: Without dead ends: 2064 [2020-10-14 03:46:57,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:46:57,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2020-10-14 03:46:57,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 2060. [2020-10-14 03:46:57,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2060 states. [2020-10-14 03:46:57,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2940 transitions. [2020-10-14 03:46:57,777 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2940 transitions. Word has length 105 [2020-10-14 03:46:57,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:57,780 INFO L479 AbstractCegarLoop]: Abstraction has 2060 states and 2940 transitions. [2020-10-14 03:46:57,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:46:57,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2940 transitions. [2020-10-14 03:46:57,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-14 03:46:57,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:57,815 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:57,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:46:57,816 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:57,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:57,816 INFO L82 PathProgramCache]: Analyzing trace with hash 417210131, now seen corresponding path program 1 times [2020-10-14 03:46:57,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:57,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722165683] [2020-10-14 03:46:57,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:57,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:57,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:58,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:59,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:46:59,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:46:59,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1660 [2020-10-14 03:46:59,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:59,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:59,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:59,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-14 03:46:59,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 03:46:59,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:59,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:59,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:59,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:59,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:59,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:46:59,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:59,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:59,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:59,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:59,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:59,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:59,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:46:59,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:59,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 03:46:59,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:59,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:59,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 03:46:59,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:46:59,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722165683] [2020-10-14 03:46:59,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:59,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:46:59,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523690679] [2020-10-14 03:46:59,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:46:59,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:59,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:46:59,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:46:59,870 INFO L87 Difference]: Start difference. First operand 2060 states and 2940 transitions. Second operand 5 states. [2020-10-14 03:47:03,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:03,711 INFO L93 Difference]: Finished difference Result 5138 states and 7618 transitions. [2020-10-14 03:47:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:47:03,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-10-14 03:47:03,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:03,733 INFO L225 Difference]: With dead ends: 5138 [2020-10-14 03:47:03,733 INFO L226 Difference]: Without dead ends: 3084 [2020-10-14 03:47:03,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:47:03,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2020-10-14 03:47:03,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 3080. [2020-10-14 03:47:03,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3080 states. [2020-10-14 03:47:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 4155 transitions. [2020-10-14 03:47:03,847 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 4155 transitions. Word has length 140 [2020-10-14 03:47:03,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:03,849 INFO L479 AbstractCegarLoop]: Abstraction has 3080 states and 4155 transitions. [2020-10-14 03:47:03,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:47:03,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 4155 transitions. [2020-10-14 03:47:03,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-14 03:47:03,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:03,870 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:03,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:47:03,870 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:03,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:03,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1489415589, now seen corresponding path program 1 times [2020-10-14 03:47:03,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:03,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888114854] [2020-10-14 03:47:03,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:04,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:04,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:04,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:05,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:05,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-14 03:47:05,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:47:05,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1350 [2020-10-14 03:47:05,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:05,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-14 03:47:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 03:47:05,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:05,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:05,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:05,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:05,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:05,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:05,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:05,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:05,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:05,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:05,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:05,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:05,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:05,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:05,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:05,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:05,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:47:05,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:05,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 03:47:05,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:05,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:05,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:05,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:05,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-14 03:47:05,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:47:05,705 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:47:05,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888114854] [2020-10-14 03:47:05,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:05,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:47:05,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599021533] [2020-10-14 03:47:05,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:47:05,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:05,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:47:05,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:47:05,712 INFO L87 Difference]: Start difference. First operand 3080 states and 4155 transitions. Second operand 5 states. [2020-10-14 03:47:09,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:09,619 INFO L93 Difference]: Finished difference Result 7178 states and 10075 transitions. [2020-10-14 03:47:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:47:09,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2020-10-14 03:47:09,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:09,647 INFO L225 Difference]: With dead ends: 7178 [2020-10-14 03:47:09,647 INFO L226 Difference]: Without dead ends: 4104 [2020-10-14 03:47:09,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:47:09,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4104 states. [2020-10-14 03:47:09,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4104 to 4100. [2020-10-14 03:47:09,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4100 states. [2020-10-14 03:47:09,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 5393 transitions. [2020-10-14 03:47:09,756 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 5393 transitions. Word has length 208 [2020-10-14 03:47:09,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:09,756 INFO L479 AbstractCegarLoop]: Abstraction has 4100 states and 5393 transitions. [2020-10-14 03:47:09,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:47:09,757 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 5393 transitions. [2020-10-14 03:47:09,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-14 03:47:09,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:09,768 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:09,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:47:09,768 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:09,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:09,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1654022154, now seen corresponding path program 1 times [2020-10-14 03:47:09,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:09,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386406281] [2020-10-14 03:47:09,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:09,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:09,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:12,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:12,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:14,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:14,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 369 [2020-10-14 03:47:14,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:14,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 03:47:14,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:14,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 03:47:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 03:47:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:14,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:14,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:14,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:14,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:14,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:14,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:47:14,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:14,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:14,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:14,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:14,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:15,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:47:15,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:15,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:47:15,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:15,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:15,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 03:47:15,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 03:47:15,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 03:47:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:15,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:15,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:47:15,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:15,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-10-14 03:47:15,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:15,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:47:15,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:15,899 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:47:15,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386406281] [2020-10-14 03:47:15,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:15,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:15,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634609140] [2020-10-14 03:47:15,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:15,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:15,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:15,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:15,904 INFO L87 Difference]: Start difference. First operand 4100 states and 5393 transitions. Second operand 7 states. [2020-10-14 03:47:19,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:19,871 INFO L93 Difference]: Finished difference Result 11644 states and 15672 transitions. [2020-10-14 03:47:19,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:47:19,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 357 [2020-10-14 03:47:19,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:19,911 INFO L225 Difference]: With dead ends: 11644 [2020-10-14 03:47:19,911 INFO L226 Difference]: Without dead ends: 7550 [2020-10-14 03:47:19,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 03:47:19,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7550 states. [2020-10-14 03:47:20,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7550 to 5504. [2020-10-14 03:47:20,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5504 states. [2020-10-14 03:47:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5504 states to 5504 states and 7204 transitions. [2020-10-14 03:47:20,064 INFO L78 Accepts]: Start accepts. Automaton has 5504 states and 7204 transitions. Word has length 357 [2020-10-14 03:47:20,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:20,064 INFO L479 AbstractCegarLoop]: Abstraction has 5504 states and 7204 transitions. [2020-10-14 03:47:20,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:20,065 INFO L276 IsEmpty]: Start isEmpty. Operand 5504 states and 7204 transitions. [2020-10-14 03:47:20,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2020-10-14 03:47:20,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:20,082 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:20,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:47:20,083 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:20,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:20,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1251147765, now seen corresponding path program 1 times [2020-10-14 03:47:20,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:20,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725481485] [2020-10-14 03:47:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:20,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:21,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:22,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:23,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:25,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 578 [2020-10-14 03:47:25,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:25,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-14 03:47:25,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:25,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:25,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:25,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 291 [2020-10-14 03:47:25,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 03:47:25,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:25,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:25,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:25,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:25,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:25,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:47:25,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:25,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:25,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:25,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:25,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:25,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:47:25,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:25,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:47:25,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:25,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:25,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:25,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:25,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:25,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:25,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:47:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:25,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:25,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:25,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:25,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 03:47:25,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:25,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:47:25,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:25,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-14 03:47:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:25,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:26,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:26,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:47:26,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:26,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441 [2020-10-14 03:47:26,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:26,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:47:26,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:26,704 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 356 proven. 2 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2020-10-14 03:47:26,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725481485] [2020-10-14 03:47:26,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:26,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:26,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059714382] [2020-10-14 03:47:26,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:26,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:26,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:26,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:26,707 INFO L87 Difference]: Start difference. First operand 5504 states and 7204 transitions. Second operand 7 states. [2020-10-14 03:47:32,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:32,427 INFO L93 Difference]: Finished difference Result 14219 states and 19484 transitions. [2020-10-14 03:47:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:32,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 564 [2020-10-14 03:47:32,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:32,480 INFO L225 Difference]: With dead ends: 14219 [2020-10-14 03:47:32,480 INFO L226 Difference]: Without dead ends: 8721 [2020-10-14 03:47:32,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 03:47:32,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8721 states. [2020-10-14 03:47:32,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8721 to 8284. [2020-10-14 03:47:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8284 states. [2020-10-14 03:47:32,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8284 states to 8284 states and 10607 transitions. [2020-10-14 03:47:32,725 INFO L78 Accepts]: Start accepts. Automaton has 8284 states and 10607 transitions. Word has length 564 [2020-10-14 03:47:32,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:32,727 INFO L479 AbstractCegarLoop]: Abstraction has 8284 states and 10607 transitions. [2020-10-14 03:47:32,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:32,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8284 states and 10607 transitions. [2020-10-14 03:47:32,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2020-10-14 03:47:32,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:32,764 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:32,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:47:32,764 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:32,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:32,765 INFO L82 PathProgramCache]: Analyzing trace with hash 539954426, now seen corresponding path program 1 times [2020-10-14 03:47:32,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:32,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796321945] [2020-10-14 03:47:32,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:32,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:32,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:33,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:35,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:35,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:37,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:37,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 599 [2020-10-14 03:47:37,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:37,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 03:47:37,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:37,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:37,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:37,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 291 [2020-10-14 03:47:37,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:47:37,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:37,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:37,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:37,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:37,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:37,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:37,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:37,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:37,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:37,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:37,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:38,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:38,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:38,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:38,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:47:38,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:38,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:47:38,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:38,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:38,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:38,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:38,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:38,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:38,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:47:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:38,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:38,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:38,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:38,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-14 03:47:38,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:38,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:47:38,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:38,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-14 03:47:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:38,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:38,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:38,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:47:38,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:38,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-10-14 03:47:38,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:38,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:38,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:38,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:38,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:47:38,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:39,751 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 356 proven. 2 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2020-10-14 03:47:39,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796321945] [2020-10-14 03:47:39,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:39,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:47:39,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189733745] [2020-10-14 03:47:39,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:47:39,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:39,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:47:39,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:47:39,754 INFO L87 Difference]: Start difference. First operand 8284 states and 10607 transitions. Second operand 8 states. [2020-10-14 03:47:45,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:45,266 INFO L93 Difference]: Finished difference Result 16638 states and 21459 transitions. [2020-10-14 03:47:45,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:45,266 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 585 [2020-10-14 03:47:45,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:45,297 INFO L225 Difference]: With dead ends: 16638 [2020-10-14 03:47:45,297 INFO L226 Difference]: Without dead ends: 8712 [2020-10-14 03:47:45,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 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 03:47:45,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8712 states. [2020-10-14 03:47:45,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8712 to 8688. [2020-10-14 03:47:45,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8688 states. [2020-10-14 03:47:45,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8688 states to 8688 states and 11091 transitions. [2020-10-14 03:47:45,477 INFO L78 Accepts]: Start accepts. Automaton has 8688 states and 11091 transitions. Word has length 585 [2020-10-14 03:47:45,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:45,478 INFO L479 AbstractCegarLoop]: Abstraction has 8688 states and 11091 transitions. [2020-10-14 03:47:45,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:47:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 8688 states and 11091 transitions. [2020-10-14 03:47:45,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2020-10-14 03:47:45,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:45,506 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:45,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:47:45,506 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:45,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:45,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1759466002, now seen corresponding path program 1 times [2020-10-14 03:47:45,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:45,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646117478] [2020-10-14 03:47:45,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:45,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:45,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:48,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:48,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:50,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:50,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 615 [2020-10-14 03:47:50,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:47:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 03:47:50,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:50,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 03:47:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:47:50,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:50,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:50,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:50,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:50,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:50,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:50,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:47:50,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:50,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:50,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:50,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:50,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:50,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:50,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:50,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:50,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:50,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:47:50,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:50,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:47:50,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:50,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:50,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:50,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:47:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:50,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:50,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:50,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:47:50,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:50,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:47:50,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:50,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:50,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:50,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:50,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:47:50,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:50,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-14 03:47:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:51,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:51,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:51,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:47:51,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:51,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-14 03:47:51,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:51,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:51,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:51,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:51,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:47:51,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:51,724 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 372 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 03:47:51,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646117478] [2020-10-14 03:47:51,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:51,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:51,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230424276] [2020-10-14 03:47:51,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:51,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:51,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:51,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:51,727 INFO L87 Difference]: Start difference. First operand 8688 states and 11091 transitions. Second operand 7 states. [2020-10-14 03:47:55,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:55,908 INFO L93 Difference]: Finished difference Result 17764 states and 22685 transitions. [2020-10-14 03:47:55,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:55,910 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 601 [2020-10-14 03:47:55,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:55,936 INFO L225 Difference]: With dead ends: 17764 [2020-10-14 03:47:55,937 INFO L226 Difference]: Without dead ends: 8309 [2020-10-14 03:47:55,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:47:55,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8309 states. [2020-10-14 03:47:56,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8309 to 8295. [2020-10-14 03:47:56,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8295 states. [2020-10-14 03:47:56,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8295 states to 8295 states and 9301 transitions. [2020-10-14 03:47:56,103 INFO L78 Accepts]: Start accepts. Automaton has 8295 states and 9301 transitions. Word has length 601 [2020-10-14 03:47:56,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:56,104 INFO L479 AbstractCegarLoop]: Abstraction has 8295 states and 9301 transitions. [2020-10-14 03:47:56,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:56,105 INFO L276 IsEmpty]: Start isEmpty. Operand 8295 states and 9301 transitions. [2020-10-14 03:47:56,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-10-14 03:47:56,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:56,134 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:56,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:47:56,134 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:56,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:56,135 INFO L82 PathProgramCache]: Analyzing trace with hash -227300754, now seen corresponding path program 1 times [2020-10-14 03:47:56,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:56,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316391200] [2020-10-14 03:47:56,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:56,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:56,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:56,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 635 [2020-10-14 03:48:01,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:01,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 03:48:01,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:01,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 03:48:01,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:48:01,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:01,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:01,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:01,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:01,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:01,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:01,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:48:01,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:48:01,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:48:01,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:48:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:48:01,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 03:48:01,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:48:01,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:01,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-14 03:48:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 03:48:01,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 03:48:01,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:01,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 03:48:01,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:01,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 03:48:01,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:48:01,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:01,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:02,301 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 214 proven. 143 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-10-14 03:48:02,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316391200] [2020-10-14 03:48:02,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:02,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:02,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983597143] [2020-10-14 03:48:02,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:02,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:02,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:02,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:02,304 INFO L87 Difference]: Start difference. First operand 8295 states and 9301 transitions. Second operand 7 states. [2020-10-14 03:48:07,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:07,010 INFO L93 Difference]: Finished difference Result 21158 states and 24989 transitions. [2020-10-14 03:48:07,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:48:07,011 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 619 [2020-10-14 03:48:07,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:07,060 INFO L225 Difference]: With dead ends: 21158 [2020-10-14 03:48:07,060 INFO L226 Difference]: Without dead ends: 13218 [2020-10-14 03:48:07,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 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 03:48:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13218 states. [2020-10-14 03:48:07,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13218 to 12388. [2020-10-14 03:48:07,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12388 states. [2020-10-14 03:48:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12388 states to 12388 states and 14068 transitions. [2020-10-14 03:48:07,353 INFO L78 Accepts]: Start accepts. Automaton has 12388 states and 14068 transitions. Word has length 619 [2020-10-14 03:48:07,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:07,354 INFO L479 AbstractCegarLoop]: Abstraction has 12388 states and 14068 transitions. [2020-10-14 03:48:07,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:07,354 INFO L276 IsEmpty]: Start isEmpty. Operand 12388 states and 14068 transitions. [2020-10-14 03:48:07,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2020-10-14 03:48:07,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:07,376 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:07,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:48:07,376 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:07,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:07,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1740847466, now seen corresponding path program 1 times [2020-10-14 03:48:07,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:07,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144136740] [2020-10-14 03:48:07,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:07,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:07,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:09,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:09,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:10,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:11,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:12,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 653 [2020-10-14 03:48:12,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:48:12,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 03:48:12,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:12,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 617 [2020-10-14 03:48:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 03:48:12,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:12,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:12,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:12,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:12,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:12,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:12,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:12,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:12,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:12,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:12,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:12,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:12,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:12,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:12,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:48:12,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:12,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:48:12,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:12,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:12,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:12,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:12,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:12,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:12,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 03:48:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:12,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:12,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:48:12,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:12,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:48:12,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:12,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:12,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-14 03:48:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:12,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:12,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 03:48:12,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:12,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 03:48:12,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:12,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:12,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:12,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:12,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 03:48:12,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:12,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:12,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:12,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 03:48:12,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:12,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:48:12,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:12,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:12,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:12,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:12,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 03:48:12,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:13,239 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 81 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2020-10-14 03:48:13,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144136740] [2020-10-14 03:48:13,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:13,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:48:13,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488540346] [2020-10-14 03:48:13,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:48:13,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:13,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:48:13,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:48:13,241 INFO L87 Difference]: Start difference. First operand 12388 states and 14068 transitions. Second operand 5 states. [2020-10-14 03:48:15,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:15,800 INFO L93 Difference]: Finished difference Result 24082 states and 27380 transitions. [2020-10-14 03:48:15,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:48:15,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 637 [2020-10-14 03:48:15,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:15,829 INFO L225 Difference]: With dead ends: 24082 [2020-10-14 03:48:15,830 INFO L226 Difference]: Without dead ends: 12049 [2020-10-14 03:48:15,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:48:15,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12049 states. [2020-10-14 03:48:16,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12049 to 12047. [2020-10-14 03:48:16,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12047 states. [2020-10-14 03:48:16,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12047 states to 12047 states and 13166 transitions. [2020-10-14 03:48:16,049 INFO L78 Accepts]: Start accepts. Automaton has 12047 states and 13166 transitions. Word has length 637 [2020-10-14 03:48:16,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:16,050 INFO L479 AbstractCegarLoop]: Abstraction has 12047 states and 13166 transitions. [2020-10-14 03:48:16,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:48:16,051 INFO L276 IsEmpty]: Start isEmpty. Operand 12047 states and 13166 transitions. [2020-10-14 03:48:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2020-10-14 03:48:16,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:16,078 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:16,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:48:16,079 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:16,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:16,079 INFO L82 PathProgramCache]: Analyzing trace with hash 628674983, now seen corresponding path program 1 times [2020-10-14 03:48:16,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:16,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816335945] [2020-10-14 03:48:16,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:16,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:16,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:16,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:16,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:21,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:21,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 828 [2020-10-14 03:48:21,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:21,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 03:48:21,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:21,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 03:48:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 309 [2020-10-14 03:48:21,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 309 [2020-10-14 03:48:21,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:21,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:21,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:21,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:21,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:21,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:21,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:21,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:21,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:21,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:21,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:21,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:21,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:21,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:21,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:48:21,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:21,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:48:21,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:21,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:21,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:21,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:21,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:21,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:21,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 03:48:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:21,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:21,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:21,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:48:21,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:21,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:48:21,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:21,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:48:21,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:21,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-14 03:48:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:21,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:21,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:22,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:22,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 03:48:22,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:48:22,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 681 [2020-10-14 03:48:22,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:22,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:22,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 03:48:22,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:22,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 03:48:22,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:22,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:22,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:22,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:22,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 03:48:22,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:22,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 03:48:22,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:22,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:22,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 03:48:22,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:22,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 03:48:22,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:22,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-14 03:48:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:22,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:22,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:22,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:48:22,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:22,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 03:48:22,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:22,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:48:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:22,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:23,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 408 proven. 172 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2020-10-14 03:48:23,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816335945] [2020-10-14 03:48:23,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:23,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 03:48:23,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305906995] [2020-10-14 03:48:23,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 03:48:23,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:23,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 03:48:23,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 03:48:23,723 INFO L87 Difference]: Start difference. First operand 12047 states and 13166 transitions. Second operand 9 states. [2020-10-14 03:48:27,778 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-10-14 03:48:28,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:28,591 INFO L93 Difference]: Finished difference Result 24078 states and 26301 transitions. [2020-10-14 03:48:28,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 03:48:28,592 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 810 [2020-10-14 03:48:28,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:28,620 INFO L225 Difference]: With dead ends: 24078 [2020-10-14 03:48:28,620 INFO L226 Difference]: Without dead ends: 12386 [2020-10-14 03:48:28,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2020-10-14 03:48:28,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12386 states. [2020-10-14 03:48:28,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12386 to 12384. [2020-10-14 03:48:28,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12384 states. [2020-10-14 03:48:28,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12384 states to 12384 states and 13505 transitions. [2020-10-14 03:48:28,823 INFO L78 Accepts]: Start accepts. Automaton has 12384 states and 13505 transitions. Word has length 810 [2020-10-14 03:48:28,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:28,824 INFO L479 AbstractCegarLoop]: Abstraction has 12384 states and 13505 transitions. [2020-10-14 03:48:28,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 03:48:28,824 INFO L276 IsEmpty]: Start isEmpty. Operand 12384 states and 13505 transitions. [2020-10-14 03:48:28,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2020-10-14 03:48:28,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:28,854 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:48:28,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:48:28,855 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:28,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:28,855 INFO L82 PathProgramCache]: Analyzing trace with hash -273510, now seen corresponding path program 1 times [2020-10-14 03:48:28,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:28,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154618642] [2020-10-14 03:48:28,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:28,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:33,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 871 [2020-10-14 03:48:33,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:33,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 03:48:33,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:33,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 03:48:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:48:33,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:34,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:34,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:34,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:34,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:34,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:34,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:34,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:34,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:34,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:34,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:34,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:34,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:34,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:48:34,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:34,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:48:34,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:34,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:34,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:34,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:34,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:48:34,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:34,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:48:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:34,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:34,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:34,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:48:34,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:34,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 03:48:34,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:34,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:34,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:34,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:34,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:48:34,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:34,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 03:48:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:34,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:34,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:34,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:48:34,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:34,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:48:34,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:34,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:48:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:34,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:34,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2020-10-14 03:48:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:34,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:34,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:34,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:48:34,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:34,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:48:34,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:34,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:48:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:34,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:35,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 244 proven. 421 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-14 03:48:35,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154618642] [2020-10-14 03:48:35,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:35,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:35,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247245424] [2020-10-14 03:48:35,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:35,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:35,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:35,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:35,782 INFO L87 Difference]: Start difference. First operand 12384 states and 13505 transitions. Second operand 7 states. [2020-10-14 03:48:39,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:39,359 INFO L93 Difference]: Finished difference Result 27318 states and 30617 transitions. [2020-10-14 03:48:39,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:48:39,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 855 [2020-10-14 03:48:39,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:39,398 INFO L225 Difference]: With dead ends: 27318 [2020-10-14 03:48:39,398 INFO L226 Difference]: Without dead ends: 14948 [2020-10-14 03:48:39,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 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 03:48:39,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14948 states. [2020-10-14 03:48:39,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14948 to 14421. [2020-10-14 03:48:39,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14421 states. [2020-10-14 03:48:39,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14421 states to 14421 states and 15779 transitions. [2020-10-14 03:48:39,671 INFO L78 Accepts]: Start accepts. Automaton has 14421 states and 15779 transitions. Word has length 855 [2020-10-14 03:48:39,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:39,671 INFO L479 AbstractCegarLoop]: Abstraction has 14421 states and 15779 transitions. [2020-10-14 03:48:39,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand 14421 states and 15779 transitions. [2020-10-14 03:48:39,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2020-10-14 03:48:39,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:39,705 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:48:39,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:48:39,706 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:39,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:39,706 INFO L82 PathProgramCache]: Analyzing trace with hash -307031910, now seen corresponding path program 1 times [2020-10-14 03:48:39,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:39,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111525654] [2020-10-14 03:48:39,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:39,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:39,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:40,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:40,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:41,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:44,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:44,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 907 [2020-10-14 03:48:44,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:44,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-14 03:48:44,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:44,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:44,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:44,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-14 03:48:44,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:48:44,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:44,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:44,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:44,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:44,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:44,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:44,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:44,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:44,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:44,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:44,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:44,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:44,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:44,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:44,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:44,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:44,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:48:44,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:44,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:48:44,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:44,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:44,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:44,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:44,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:44,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:44,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:48:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:45,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:45,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:48:45,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:45,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:48:45,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:45,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:45,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:45,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:45,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:48:45,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:45,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-14 03:48:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:45,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:45,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:48:45,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:45,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 03:48:45,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:45,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:48:45,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:45,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2020-10-14 03:48:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:45,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:45,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:48:45,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:45,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:48:45,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:45,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:45,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:45,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:48:45,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:45,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:45,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 691 [2020-10-14 03:48:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:45,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:45,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:48:45,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:45,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:48:45,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:45,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:45,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:45,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:48:45,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:45,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:46,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1304 backedges. 314 proven. 421 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-14 03:48:46,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111525654] [2020-10-14 03:48:46,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:46,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:46,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312973785] [2020-10-14 03:48:46,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:46,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:46,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:46,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:46,655 INFO L87 Difference]: Start difference. First operand 14421 states and 15779 transitions. Second operand 7 states. [2020-10-14 03:48:50,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:50,359 INFO L93 Difference]: Finished difference Result 29702 states and 33216 transitions. [2020-10-14 03:48:50,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:50,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 889 [2020-10-14 03:48:50,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:50,400 INFO L225 Difference]: With dead ends: 29702 [2020-10-14 03:48:50,400 INFO L226 Difference]: Without dead ends: 15287 [2020-10-14 03:48:50,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 03:48:50,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15287 states. [2020-10-14 03:48:50,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15287 to 14429. [2020-10-14 03:48:50,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14429 states. [2020-10-14 03:48:50,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14429 states to 14429 states and 15719 transitions. [2020-10-14 03:48:50,679 INFO L78 Accepts]: Start accepts. Automaton has 14429 states and 15719 transitions. Word has length 889 [2020-10-14 03:48:50,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:50,679 INFO L479 AbstractCegarLoop]: Abstraction has 14429 states and 15719 transitions. [2020-10-14 03:48:50,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:50,679 INFO L276 IsEmpty]: Start isEmpty. Operand 14429 states and 15719 transitions. [2020-10-14 03:48:50,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2020-10-14 03:48:50,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:50,711 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:48:50,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:48:50,712 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:50,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:50,712 INFO L82 PathProgramCache]: Analyzing trace with hash -2119727217, now seen corresponding path program 1 times [2020-10-14 03:48:50,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:50,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993158858] [2020-10-14 03:48:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:50,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:50,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:51,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:51,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:52,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:54,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:55,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 908 [2020-10-14 03:48:55,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:48:55,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 03:48:55,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:55,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:55,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:55,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-10-14 03:48:55,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:48:55,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:55,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:55,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:55,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:55,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:55,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:55,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:55,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:55,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:55,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:55,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:55,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:55,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:55,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:55,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:48:55,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:55,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:48:55,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:55,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:55,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:55,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:55,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:55,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:55,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:48:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:55,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:55,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:48:55,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:55,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:48:55,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:55,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:48:55,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:55,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-14 03:48:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:56,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:56,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:56,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:48:56,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:56,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 03:48:56,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:56,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:56,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:56,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:56,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:48:56,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:56,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2020-10-14 03:48:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:56,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:56,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:56,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:48:56,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:56,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:48:56,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:56,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:56,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:56,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:48:56,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:56,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:56,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 692 [2020-10-14 03:48:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:56,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:56,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:56,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:48:56,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:56,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:48:56,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:56,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:48:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:56,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:57,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1308 backedges. 315 proven. 421 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2020-10-14 03:48:57,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993158858] [2020-10-14 03:48:57,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:57,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:57,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909948860] [2020-10-14 03:48:57,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:57,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:57,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:57,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:57,347 INFO L87 Difference]: Start difference. First operand 14429 states and 15719 transitions. Second operand 7 states. [2020-10-14 03:49:00,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:00,966 INFO L93 Difference]: Finished difference Result 29738 states and 33137 transitions. [2020-10-14 03:49:00,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:49:00,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 890 [2020-10-14 03:49:00,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:01,015 INFO L225 Difference]: With dead ends: 29738 [2020-10-14 03:49:01,015 INFO L226 Difference]: Without dead ends: 15315 [2020-10-14 03:49:01,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:01,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15315 states. [2020-10-14 03:49:01,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15315 to 15105. [2020-10-14 03:49:01,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15105 states. [2020-10-14 03:49:01,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15105 states to 15105 states and 16433 transitions. [2020-10-14 03:49:01,366 INFO L78 Accepts]: Start accepts. Automaton has 15105 states and 16433 transitions. Word has length 890 [2020-10-14 03:49:01,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:01,367 INFO L479 AbstractCegarLoop]: Abstraction has 15105 states and 16433 transitions. [2020-10-14 03:49:01,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:01,368 INFO L276 IsEmpty]: Start isEmpty. Operand 15105 states and 16433 transitions. [2020-10-14 03:49:01,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 916 [2020-10-14 03:49:01,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:01,390 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:49:01,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:49:01,390 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:01,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:01,391 INFO L82 PathProgramCache]: Analyzing trace with hash 51258118, now seen corresponding path program 1 times [2020-10-14 03:49:01,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:01,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604324793] [2020-10-14 03:49:01,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:01,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:01,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:01,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:01,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:05,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:06,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:06,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 933 [2020-10-14 03:49:06,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:49:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 03:49:06,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:06,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-10-14 03:49:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:49:06,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:06,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:06,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:06,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:06,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:06,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:06,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:49:06,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:06,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:06,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:06,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:06,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:06,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:06,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:06,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:06,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:06,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:49:06,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:06,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:49:06,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:06,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:06,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:06,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:06,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:06,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:06,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:49:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:06,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:06,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:06,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:49:06,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:06,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:49:06,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:06,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:06,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:06,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:06,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:49:06,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:06,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 03:49:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:06,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:06,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:06,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:06,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:06,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 03:49:06,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:06,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:06,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:06,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:06,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:49:06,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:07,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2020-10-14 03:49:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:07,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:07,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:07,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:49:07,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:07,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:49:07,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:07,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:07,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:07,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:49:07,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:07,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:07,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-14 03:49:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:07,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:07,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:07,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:49:07,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:07,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:49:07,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:07,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:07,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:07,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:49:07,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:07,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 340 proven. 421 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2020-10-14 03:49:08,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604324793] [2020-10-14 03:49:08,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:08,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:49:08,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006989215] [2020-10-14 03:49:08,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:49:08,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:08,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:49:08,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:49:08,703 INFO L87 Difference]: Start difference. First operand 15105 states and 16433 transitions. Second operand 8 states. [2020-10-14 03:49:12,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:12,579 INFO L93 Difference]: Finished difference Result 32272 states and 35308 transitions. [2020-10-14 03:49:12,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:49:12,580 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 915 [2020-10-14 03:49:12,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:12,609 INFO L225 Difference]: With dead ends: 32272 [2020-10-14 03:49:12,609 INFO L226 Difference]: Without dead ends: 17173 [2020-10-14 03:49:12,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-14 03:49:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17173 states. [2020-10-14 03:49:12,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17173 to 16816. [2020-10-14 03:49:12,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16816 states. [2020-10-14 03:49:12,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16816 states to 16816 states and 18357 transitions. [2020-10-14 03:49:12,853 INFO L78 Accepts]: Start accepts. Automaton has 16816 states and 18357 transitions. Word has length 915 [2020-10-14 03:49:12,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:12,853 INFO L479 AbstractCegarLoop]: Abstraction has 16816 states and 18357 transitions. [2020-10-14 03:49:12,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:49:12,853 INFO L276 IsEmpty]: Start isEmpty. Operand 16816 states and 18357 transitions. [2020-10-14 03:49:12,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2020-10-14 03:49:12,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:12,875 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:49:12,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:49:12,876 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:12,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:12,876 INFO L82 PathProgramCache]: Analyzing trace with hash -2111604201, now seen corresponding path program 1 times [2020-10-14 03:49:12,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:12,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447813472] [2020-10-14 03:49:12,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:12,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:13,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:13,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:13,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:17,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:17,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1000 [2020-10-14 03:49:17,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:17,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 03:49:17,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:17,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:17,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-14 03:49:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:49:17,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:18,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:18,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:18,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:18,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:18,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:18,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:49:18,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:18,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:18,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:18,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:18,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:18,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:18,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:18,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:18,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:18,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:49:18,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:18,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:49:18,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:18,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:18,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:18,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:49:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:18,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:18,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:18,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:49:18,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:18,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:49:18,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:18,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:18,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:18,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:18,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 03:49:18,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:18,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-10-14 03:49:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:18,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:18,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:18,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:18,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:18,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 03:49:18,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:18,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:18,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:18,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:18,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:49:18,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:18,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2020-10-14 03:49:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:18,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:18,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:18,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:49:18,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:18,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 03:49:18,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:18,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:49:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:18,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:18,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 03:49:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:18,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:18,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:18,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:49:18,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:18,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 03:49:18,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:18,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:18,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:18,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:49:18,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:18,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1614 backedges. 407 proven. 421 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2020-10-14 03:49:19,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447813472] [2020-10-14 03:49:19,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:19,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:19,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182687323] [2020-10-14 03:49:19,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:19,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:19,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:19,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:19,660 INFO L87 Difference]: Start difference. First operand 16816 states and 18357 transitions. Second operand 7 states. [2020-10-14 03:49:22,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:22,666 INFO L93 Difference]: Finished difference Result 37351 states and 40817 transitions. [2020-10-14 03:49:22,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:49:22,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 982 [2020-10-14 03:49:22,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:22,717 INFO L225 Difference]: With dead ends: 37351 [2020-10-14 03:49:22,717 INFO L226 Difference]: Without dead ends: 20541 [2020-10-14 03:49:22,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:49:22,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20541 states. [2020-10-14 03:49:23,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20541 to 19859. [2020-10-14 03:49:23,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19859 states. [2020-10-14 03:49:23,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19859 states to 19859 states and 21542 transitions. [2020-10-14 03:49:23,066 INFO L78 Accepts]: Start accepts. Automaton has 19859 states and 21542 transitions. Word has length 982 [2020-10-14 03:49:23,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:23,067 INFO L479 AbstractCegarLoop]: Abstraction has 19859 states and 21542 transitions. [2020-10-14 03:49:23,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:23,067 INFO L276 IsEmpty]: Start isEmpty. Operand 19859 states and 21542 transitions. [2020-10-14 03:49:23,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1123 [2020-10-14 03:49:23,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:23,116 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 03:49:23,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:49:23,116 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:23,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:23,117 INFO L82 PathProgramCache]: Analyzing trace with hash -503990365, now seen corresponding path program 1 times [2020-10-14 03:49:23,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:23,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635087169] [2020-10-14 03:49:23,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:23,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:28,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:28,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1140 [2020-10-14 03:49:28,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:49:28,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 03:49:28,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:28,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:28,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:28,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-14 03:49:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:49:28,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:28,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:28,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:28,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:28,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:28,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:28,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:28,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:28,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:28,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:28,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:28,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:28,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:28,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:28,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:28,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:49:28,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:28,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:49:28,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:28,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:28,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:28,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:49:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:28,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:28,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:28,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:49:28,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:28,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:49:28,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:28,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:28,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:28,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:28,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 03:49:28,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:28,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 03:49:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:28,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:29,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:29,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:29,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:29,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-14 03:49:29,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:29,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:29,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:29,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:29,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:49:29,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:29,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 672 [2020-10-14 03:49:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:29,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:29,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:29,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:49:29,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:29,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:49:29,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:29,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:49:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:29,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:29,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 924 [2020-10-14 03:49:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:29,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:29,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:29,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:49:29,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:29,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:49:29,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:29,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:29,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:29,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:49:29,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:29,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:30,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2031 backedges. 547 proven. 421 refuted. 0 times theorem prover too weak. 1063 trivial. 0 not checked. [2020-10-14 03:49:30,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635087169] [2020-10-14 03:49:30,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:30,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:49:30,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321984006] [2020-10-14 03:49:30,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:49:30,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:30,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:49:30,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:49:30,935 INFO L87 Difference]: Start difference. First operand 19859 states and 21542 transitions. Second operand 8 states. [2020-10-14 03:49:35,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:35,247 INFO L93 Difference]: Finished difference Result 42079 states and 46110 transitions. [2020-10-14 03:49:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:49:35,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1122 [2020-10-14 03:49:35,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:35,298 INFO L225 Difference]: With dead ends: 42079 [2020-10-14 03:49:35,299 INFO L226 Difference]: Without dead ends: 22563 [2020-10-14 03:49:35,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 03:49:35,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22563 states. [2020-10-14 03:49:35,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22563 to 22559. [2020-10-14 03:49:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22559 states. [2020-10-14 03:49:35,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22559 states to 22559 states and 24702 transitions. [2020-10-14 03:49:35,670 INFO L78 Accepts]: Start accepts. Automaton has 22559 states and 24702 transitions. Word has length 1122 [2020-10-14 03:49:35,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:35,671 INFO L479 AbstractCegarLoop]: Abstraction has 22559 states and 24702 transitions. [2020-10-14 03:49:35,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:49:35,671 INFO L276 IsEmpty]: Start isEmpty. Operand 22559 states and 24702 transitions. [2020-10-14 03:49:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1171 [2020-10-14 03:49:35,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:35,703 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 03:49:35,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:49:35,703 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:35,704 INFO L82 PathProgramCache]: Analyzing trace with hash 539786731, now seen corresponding path program 1 times [2020-10-14 03:49:35,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:35,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338429542] [2020-10-14 03:49:35,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:35,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:36,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:37,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:40,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:40,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1188 [2020-10-14 03:49:40,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:49:40,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 03:49:40,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:40,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:40,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:40,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 462 [2020-10-14 03:49:40,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:49:40,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:40,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:40,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:40,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:40,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:40,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:40,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:40,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:40,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:40,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:40,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:40,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:41,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:41,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:41,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:41,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:49:41,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:41,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:41,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:41,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:41,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:41,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:41,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:41,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:41,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:41,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:49:41,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:41,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:49:41,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:41,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:41,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:41,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:41,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-14 03:49:41,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:41,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-14 03:49:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:41,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:41,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:41,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:41,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:41,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 03:49:41,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:41,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:41,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:41,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:41,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:49:41,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:41,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2020-10-14 03:49:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:41,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:41,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:41,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:49:41,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:41,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:49:41,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:41,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:41,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:41,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:49:41,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:41,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:41,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 972 [2020-10-14 03:49:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:41,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:41,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:41,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:49:41,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:41,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:49:41,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:41,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:49:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:41,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2175 backedges. 595 proven. 421 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2020-10-14 03:49:42,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338429542] [2020-10-14 03:49:42,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:42,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:42,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801074510] [2020-10-14 03:49:42,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:42,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:42,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:42,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:42,787 INFO L87 Difference]: Start difference. First operand 22559 states and 24702 transitions. Second operand 7 states. [2020-10-14 03:49:47,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:47,271 INFO L93 Difference]: Finished difference Result 48500 states and 53214 transitions. [2020-10-14 03:49:47,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:49:47,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1170 [2020-10-14 03:49:47,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:47,325 INFO L225 Difference]: With dead ends: 48500 [2020-10-14 03:49:47,326 INFO L226 Difference]: Without dead ends: 26284 [2020-10-14 03:49:47,347 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 03:49:47,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26284 states. [2020-10-14 03:49:47,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26284 to 25600. [2020-10-14 03:49:47,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25600 states. [2020-10-14 03:49:47,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25600 states to 25600 states and 27966 transitions. [2020-10-14 03:49:47,660 INFO L78 Accepts]: Start accepts. Automaton has 25600 states and 27966 transitions. Word has length 1170 [2020-10-14 03:49:47,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:47,661 INFO L479 AbstractCegarLoop]: Abstraction has 25600 states and 27966 transitions. [2020-10-14 03:49:47,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:47,661 INFO L276 IsEmpty]: Start isEmpty. Operand 25600 states and 27966 transitions. [2020-10-14 03:49:47,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1417 [2020-10-14 03:49:47,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:47,839 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:47,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:49:47,840 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:47,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1604473349, now seen corresponding path program 1 times [2020-10-14 03:49:47,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:47,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549317370] [2020-10-14 03:49:47,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:48,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:48,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:48,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:49,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:53,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:53,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1440 [2020-10-14 03:49:53,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:49:53,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5149 [2020-10-14 03:49:53,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:53,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:53,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:53,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:49:53,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 03:49:53,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:53,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:53,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:53,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:53,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:53,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:53,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:53,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:53,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:53,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:53,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:53,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:53,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:53,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:53,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:53,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:53,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:53,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:53,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 03:49:53,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:53,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:53,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:53,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:53,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:53,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:53,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:53,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:53,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:53,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:49:53,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:53,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:49:53,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:53,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:53,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:53,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:53,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:49:53,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:53,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:49:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:53,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:53,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:53,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 03:49:53,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:53,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-14 03:49:53,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:53,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:53,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 03:49:53,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:53,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2020-10-14 03:49:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:53,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:53,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:53,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:53,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:53,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 03:49:53,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:53,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:53,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:53,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 260 [2020-10-14 03:49:53,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:53,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:54,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 746 [2020-10-14 03:49:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 03:49:54,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:54,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:49:54,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:54,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 03:49:54,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:54,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:54,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 03:49:54,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:54,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 03:49:54,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:54,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:54,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1053 [2020-10-14 03:49:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 03:49:54,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:54,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:49:54,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 03:49:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:54,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:54,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1218 [2020-10-14 03:49:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:49:54,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:54,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:49:54,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:54,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:49:54,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:54,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3351 backedges. 440 proven. 518 refuted. 0 times theorem prover too weak. 2393 trivial. 0 not checked. [2020-10-14 03:49:55,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549317370] [2020-10-14 03:49:55,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:55,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:55,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181959436] [2020-10-14 03:49:55,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:55,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:55,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:55,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:55,377 INFO L87 Difference]: Start difference. First operand 25600 states and 27966 transitions. Second operand 7 states. [2020-10-14 03:49:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:59,209 INFO L93 Difference]: Finished difference Result 50533 states and 55240 transitions. [2020-10-14 03:49:59,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:49:59,210 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1416 [2020-10-14 03:49:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:59,251 INFO L225 Difference]: With dead ends: 50533 [2020-10-14 03:49:59,251 INFO L226 Difference]: Without dead ends: 25276 [2020-10-14 03:49:59,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 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 03:49:59,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25276 states. [2020-10-14 03:49:59,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25276 to 25268. [2020-10-14 03:49:59,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25268 states. [2020-10-14 03:49:59,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25268 states to 25268 states and 26992 transitions. [2020-10-14 03:49:59,581 INFO L78 Accepts]: Start accepts. Automaton has 25268 states and 26992 transitions. Word has length 1416 [2020-10-14 03:49:59,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:59,582 INFO L479 AbstractCegarLoop]: Abstraction has 25268 states and 26992 transitions. [2020-10-14 03:49:59,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:59,582 INFO L276 IsEmpty]: Start isEmpty. Operand 25268 states and 26992 transitions. [2020-10-14 03:49:59,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1554 [2020-10-14 03:49:59,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:59,624 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:59,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:49:59,625 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:59,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:59,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1703968582, now seen corresponding path program 1 times [2020-10-14 03:49:59,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:59,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881573480] [2020-10-14 03:49:59,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:59,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:00,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:00,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:00,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:02,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:04,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:04,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1577 [2020-10-14 03:50:04,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:50:04,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5082 [2020-10-14 03:50:04,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:04,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 731 [2020-10-14 03:50:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:50:04,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:04,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:04,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:04,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:04,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:04,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:04,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:50:04,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:04,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:04,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:05,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:05,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:05,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:05,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:50:05,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:05,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:50:05,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:05,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:05,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:05,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:50:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:05,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:05,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:05,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:50:05,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:05,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:50:05,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:05,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:05,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:05,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:05,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:05,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:05,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:50:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:05,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:05,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:05,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:50:05,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:05,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:50:05,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:05,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:05,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:05,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:05,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:05,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:05,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 03:50:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:05,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:05,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:05,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:50:05,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:05,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:50:05,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:05,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:05,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:05,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:05,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 03:50:05,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:05,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 03:50:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:05,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:05,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:05,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:50:05,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:05,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 03:50:05,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:05,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:05,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:05,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:05,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:50:05,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:05,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 938 [2020-10-14 03:50:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:05,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:05,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:05,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:50:05,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:05,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 03:50:05,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:05,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:05,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:05,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:50:05,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:05,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:05,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1190 [2020-10-14 03:50:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:05,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:05,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:05,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 03:50:05,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:05,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:50:05,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:05,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 03:50:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:05,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1355 [2020-10-14 03:50:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:05,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:06,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:06,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:50:06,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:06,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:50:06,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:06,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:06,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:06,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:50:06,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:06,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4660 backedges. 940 proven. 546 refuted. 0 times theorem prover too weak. 3174 trivial. 0 not checked. [2020-10-14 03:50:07,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881573480] [2020-10-14 03:50:07,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:07,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:07,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996407775] [2020-10-14 03:50:07,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:07,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:07,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:07,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:07,078 INFO L87 Difference]: Start difference. First operand 25268 states and 26992 transitions. Second operand 7 states. [2020-10-14 03:50:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:12,213 INFO L93 Difference]: Finished difference Result 54245 states and 57894 transitions. [2020-10-14 03:50:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:50:12,214 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1553 [2020-10-14 03:50:12,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:12,257 INFO L225 Difference]: With dead ends: 54245 [2020-10-14 03:50:12,257 INFO L226 Difference]: Without dead ends: 26597 [2020-10-14 03:50:12,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 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 03:50:12,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26597 states. [2020-10-14 03:50:12,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26597 to 24230. [2020-10-14 03:50:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24230 states. [2020-10-14 03:50:12,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24230 states to 24230 states and 25640 transitions. [2020-10-14 03:50:12,603 INFO L78 Accepts]: Start accepts. Automaton has 24230 states and 25640 transitions. Word has length 1553 [2020-10-14 03:50:12,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:12,605 INFO L479 AbstractCegarLoop]: Abstraction has 24230 states and 25640 transitions. [2020-10-14 03:50:12,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:12,605 INFO L276 IsEmpty]: Start isEmpty. Operand 24230 states and 25640 transitions. [2020-10-14 03:50:12,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1589 [2020-10-14 03:50:12,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:12,688 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:50:12,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:50:12,688 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:12,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:12,689 INFO L82 PathProgramCache]: Analyzing trace with hash 2137404307, now seen corresponding path program 1 times [2020-10-14 03:50:12,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:12,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992926121] [2020-10-14 03:50:12,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:13,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:13,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:14,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:14,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:15,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1614 [2020-10-14 03:50:18,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:50:18,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-14 03:50:18,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:50:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 03:50:18,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:18,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:18,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:18,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:18,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:50:18,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:18,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:18,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:18,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:18,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:18,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:50:18,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:18,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-14 03:50:18,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:50:18,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:18,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:50:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:18,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:50:18,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 03:50:18,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-14 03:50:18,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:18,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:50:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:18,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:50:18,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:18,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:50:18,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:18,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 03:50:18,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:18,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:18,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 03:50:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:18,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:50:18,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:18,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:50:18,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:50:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:18,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:18,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 03:50:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:18,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:50:18,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:18,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:50:18,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:50:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:18,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 833 [2020-10-14 03:50:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:19,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:19,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:19,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 03:50:19,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:19,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:50:19,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:19,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 03:50:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:19,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:19,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-14 03:50:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:19,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:19,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:19,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:50:19,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:19,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 03:50:19,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:19,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:19,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:19,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:50:19,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:19,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:19,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1225 [2020-10-14 03:50:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:19,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:19,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:19,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 03:50:19,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:19,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:50:19,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:19,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 03:50:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:19,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:19,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1390 [2020-10-14 03:50:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:19,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:19,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:19,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:50:19,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:19,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:50:19,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:19,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:19,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:19,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:50:19,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:19,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:20,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5216 backedges. 454 proven. 1033 refuted. 0 times theorem prover too weak. 3729 trivial. 0 not checked. [2020-10-14 03:50:20,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992926121] [2020-10-14 03:50:20,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:20,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:20,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942646808] [2020-10-14 03:50:20,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:20,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:20,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:20,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:20,488 INFO L87 Difference]: Start difference. First operand 24230 states and 25640 transitions. Second operand 7 states.