/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/Problem11_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 02:40:04,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 02:40:04,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 02:40:04,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 02:40:04,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 02:40:04,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 02:40:04,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 02:40:04,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 02:40:04,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 02:40:04,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 02:40:04,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 02:40:04,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 02:40:04,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 02:40:04,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 02:40:04,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 02:40:04,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 02:40:04,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 02:40:04,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 02:40:04,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 02:40:04,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 02:40:04,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 02:40:04,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 02:40:04,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 02:40:04,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 02:40:04,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 02:40:04,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 02:40:04,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 02:40:04,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 02:40:04,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 02:40:04,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 02:40:04,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 02:40:04,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 02:40:04,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 02:40:04,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 02:40:04,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 02:40:04,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 02:40:04,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 02:40:04,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 02:40:04,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 02:40:04,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 02:40:04,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 02:40:04,976 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 02:40:04,999 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 02:40:04,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 02:40:05,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 02:40:05,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 02:40:05,001 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 02:40:05,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 02:40:05,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 02:40:05,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 02:40:05,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 02:40:05,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 02:40:05,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 02:40:05,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 02:40:05,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 02:40:05,002 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 02:40:05,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 02:40:05,003 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 02:40:05,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 02:40:05,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 02:40:05,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 02:40:05,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 02:40:05,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 02:40:05,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 02:40:05,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 02:40:05,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 02:40:05,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 02:40:05,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 02:40:05,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 02:40:05,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 02:40:05,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 02:40:05,006 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 02:40:05,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 02:40:05,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 02:40:05,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 02:40:05,327 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 02:40:05,327 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 02:40:05,328 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label54.c [2020-10-14 02:40:05,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d67f2c013/cab1b58fbeaa4b73be669567a01dba8c/FLAGd8c2a140d [2020-10-14 02:40:06,008 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 02:40:06,009 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label54.c [2020-10-14 02:40:06,022 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d67f2c013/cab1b58fbeaa4b73be669567a01dba8c/FLAGd8c2a140d [2020-10-14 02:40:06,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d67f2c013/cab1b58fbeaa4b73be669567a01dba8c [2020-10-14 02:40:06,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 02:40:06,295 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 02:40:06,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 02:40:06,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 02:40:06,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 02:40:06,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:40:06" (1/1) ... [2020-10-14 02:40:06,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779392b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:40:06, skipping insertion in model container [2020-10-14 02:40:06,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:40:06" (1/1) ... [2020-10-14 02:40:06,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 02:40:06,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 02:40:07,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:40:07,137 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 02:40:07,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:40:07,420 INFO L208 MainTranslator]: Completed translation [2020-10-14 02:40:07,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:40:07 WrapperNode [2020-10-14 02:40:07,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 02:40:07,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 02:40:07,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 02:40:07,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 02:40:07,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:40:07" (1/1) ... [2020-10-14 02:40:07,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:40:07" (1/1) ... [2020-10-14 02:40:07,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:40:07" (1/1) ... [2020-10-14 02:40:07,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:40:07" (1/1) ... [2020-10-14 02:40:07,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:40:07" (1/1) ... [2020-10-14 02:40:07,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:40:07" (1/1) ... [2020-10-14 02:40:07,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:40:07" (1/1) ... [2020-10-14 02:40:07,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 02:40:07,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 02:40:07,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 02:40:07,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 02:40:07,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:40:07" (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 02:40:07,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 02:40:07,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 02:40:07,709 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 02:40:07,709 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 02:40:07,709 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 02:40:07,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 02:40:07,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 02:40:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 02:40:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 02:40:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 02:40:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 02:40:09,511 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 02:40:09,511 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 02:40:09,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:40:09 BoogieIcfgContainer [2020-10-14 02:40:09,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 02:40:09,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 02:40:09,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 02:40:09,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 02:40:09,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:40:06" (1/3) ... [2020-10-14 02:40:09,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728caf43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:40:09, skipping insertion in model container [2020-10-14 02:40:09,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:40:07" (2/3) ... [2020-10-14 02:40:09,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728caf43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:40:09, skipping insertion in model container [2020-10-14 02:40:09,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:40:09" (3/3) ... [2020-10-14 02:40:09,529 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label54.c [2020-10-14 02:40:09,541 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 02:40:09,550 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 02:40:09,565 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 02:40:09,593 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 02:40:09,593 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 02:40:09,593 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 02:40:09,593 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 02:40:09,594 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 02:40:09,594 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 02:40:09,594 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 02:40:09,594 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 02:40:09,624 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-10-14 02:40:09,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 02:40:09,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:09,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:40:09,634 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:09,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:09,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1043442102, now seen corresponding path program 1 times [2020-10-14 02:40:09,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:09,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735069326] [2020-10-14 02:40:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:09,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:10,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:10,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 02:40:10,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:10,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-14 02:40:10,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:10,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:10,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:40:10,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:40:10,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 02:40:10,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 02:40:10,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:10,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:10,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:10,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:10,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:10,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 02:40:10,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:10,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:10,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:10,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:10,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:40:10,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:10,415 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 02:40:10,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735069326] [2020-10-14 02:40:10,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:40:10,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 02:40:10,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883264141] [2020-10-14 02:40:10,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:40:10,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:10,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:40:10,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:40:10,441 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 5 states. [2020-10-14 02:40:12,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:12,862 INFO L93 Difference]: Finished difference Result 793 states and 1394 transitions. [2020-10-14 02:40:12,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:40:12,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-10-14 02:40:12,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:12,881 INFO L225 Difference]: With dead ends: 793 [2020-10-14 02:40:12,882 INFO L226 Difference]: Without dead ends: 437 [2020-10-14 02:40:12,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 02:40:12,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-10-14 02:40:12,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 422. [2020-10-14 02:40:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-10-14 02:40:12,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 673 transitions. [2020-10-14 02:40:12,981 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 673 transitions. Word has length 43 [2020-10-14 02:40:12,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:12,981 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 673 transitions. [2020-10-14 02:40:12,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:40:12,982 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 673 transitions. [2020-10-14 02:40:12,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 02:40:12,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:12,987 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:12,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 02:40:12,988 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:12,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:12,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1726647537, now seen corresponding path program 1 times [2020-10-14 02:40:12,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:12,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283366922] [2020-10-14 02:40:12,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:13,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:13,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:13,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:14,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:14,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 02:40:14,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:40:14,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1528 [2020-10-14 02:40:14,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:14,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:14,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:14,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 02:40:14,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 02:40:14,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:14,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:14,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:14,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:14,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:14,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:14,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:40:14,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:14,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:14,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:14,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:14,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:14,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:14,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 02:40:14,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:14,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 02:40:14,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:14,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:14,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:14,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 02:40:14,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 02:40:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:40:14,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283366922] [2020-10-14 02:40:14,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:14,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:40:14,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721127024] [2020-10-14 02:40:14,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:40:14,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:14,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:40:14,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:40:14,860 INFO L87 Difference]: Start difference. First operand 422 states and 673 transitions. Second operand 5 states. [2020-10-14 02:40:16,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:16,979 INFO L93 Difference]: Finished difference Result 1231 states and 1995 transitions. [2020-10-14 02:40:16,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:40:16,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-10-14 02:40:16,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:16,986 INFO L225 Difference]: With dead ends: 1231 [2020-10-14 02:40:16,987 INFO L226 Difference]: Without dead ends: 815 [2020-10-14 02:40:16,989 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 02:40:16,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2020-10-14 02:40:17,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 805. [2020-10-14 02:40:17,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2020-10-14 02:40:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1264 transitions. [2020-10-14 02:40:17,040 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1264 transitions. Word has length 112 [2020-10-14 02:40:17,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:17,041 INFO L479 AbstractCegarLoop]: Abstraction has 805 states and 1264 transitions. [2020-10-14 02:40:17,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:40:17,041 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1264 transitions. [2020-10-14 02:40:17,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 02:40:17,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:17,046 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:17,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 02:40:17,047 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:17,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:17,047 INFO L82 PathProgramCache]: Analyzing trace with hash -305609846, now seen corresponding path program 1 times [2020-10-14 02:40:17,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:17,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [773821110] [2020-10-14 02:40:17,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:17,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:17,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:17,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:18,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:18,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 02:40:18,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:40:18,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1210 [2020-10-14 02:40:18,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:18,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:18,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:18,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 02:40:18,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 02:40:18,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:18,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:18,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:18,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:18,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:18,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:18,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 02:40:18,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:18,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:18,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:18,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:18,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:18,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:18,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:18,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:18,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:18,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 02:40:18,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:18,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 02:40:18,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:18,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:18,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:18,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 02:40:18,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:18,665 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:40:18,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [773821110] [2020-10-14 02:40:18,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:18,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:40:18,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446010840] [2020-10-14 02:40:18,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:40:18,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:18,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:40:18,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:40:18,669 INFO L87 Difference]: Start difference. First operand 805 states and 1264 transitions. Second operand 5 states. [2020-10-14 02:40:20,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:20,758 INFO L93 Difference]: Finished difference Result 1994 states and 3186 transitions. [2020-10-14 02:40:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:40:20,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-10-14 02:40:20,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:20,776 INFO L225 Difference]: With dead ends: 1994 [2020-10-14 02:40:20,776 INFO L226 Difference]: Without dead ends: 1195 [2020-10-14 02:40:20,779 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 02:40:20,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2020-10-14 02:40:20,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1185. [2020-10-14 02:40:20,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1185 states. [2020-10-14 02:40:20,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1860 transitions. [2020-10-14 02:40:20,848 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1860 transitions. Word has length 115 [2020-10-14 02:40:20,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:20,849 INFO L479 AbstractCegarLoop]: Abstraction has 1185 states and 1860 transitions. [2020-10-14 02:40:20,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:40:20,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1860 transitions. [2020-10-14 02:40:20,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 02:40:20,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:20,866 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:20,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 02:40:20,866 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:20,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:20,867 INFO L82 PathProgramCache]: Analyzing trace with hash 2051275321, now seen corresponding path program 1 times [2020-10-14 02:40:20,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:20,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550350144] [2020-10-14 02:40:20,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:20,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:21,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:21,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:21,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 02:40:21,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:40:21,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1068 [2020-10-14 02:40:21,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:21,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:21,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:21,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 02:40:21,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 02:40:21,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:22,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:22,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:22,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:22,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:22,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:22,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 02:40:22,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:22,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:22,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:22,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:22,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:22,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:22,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:22,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:22,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:22,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 02:40:22,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:22,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 02:40:22,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:22,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:22,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:22,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:22,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 02:40:22,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:22,273 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:40:22,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550350144] [2020-10-14 02:40:22,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:22,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:40:22,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994062968] [2020-10-14 02:40:22,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:40:22,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:22,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:40:22,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:40:22,288 INFO L87 Difference]: Start difference. First operand 1185 states and 1860 transitions. Second operand 5 states. [2020-10-14 02:40:24,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:24,862 INFO L93 Difference]: Finished difference Result 3339 states and 5367 transitions. [2020-10-14 02:40:24,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:40:24,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-10-14 02:40:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:24,880 INFO L225 Difference]: With dead ends: 3339 [2020-10-14 02:40:24,881 INFO L226 Difference]: Without dead ends: 2160 [2020-10-14 02:40:24,885 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 02:40:24,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2160 states. [2020-10-14 02:40:24,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2160 to 1770. [2020-10-14 02:40:24,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1770 states. [2020-10-14 02:40:24,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2626 transitions. [2020-10-14 02:40:24,988 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2626 transitions. Word has length 116 [2020-10-14 02:40:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:24,990 INFO L479 AbstractCegarLoop]: Abstraction has 1770 states and 2626 transitions. [2020-10-14 02:40:24,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:40:24,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2626 transitions. [2020-10-14 02:40:24,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-14 02:40:24,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:24,994 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:24,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 02:40:24,994 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:24,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:24,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1999806277, now seen corresponding path program 1 times [2020-10-14 02:40:24,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:24,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437357694] [2020-10-14 02:40:24,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:25,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:25,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:25,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:26,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:26,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 02:40:26,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:40:26,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-10-14 02:40:26,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:26,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:26,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:26,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 02:40:26,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 02:40:26,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:26,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:26,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:26,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:26,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:26,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:40:26,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:26,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:26,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:26,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:26,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:26,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:26,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:40:26,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:26,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 02:40:26,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:26,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:26,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:26,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:26,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 02:40:26,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 02:40:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:40:26,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437357694] [2020-10-14 02:40:26,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:26,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:40:26,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773312405] [2020-10-14 02:40:26,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:40:26,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:26,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:40:26,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:40:26,356 INFO L87 Difference]: Start difference. First operand 1770 states and 2626 transitions. Second operand 5 states. [2020-10-14 02:40:28,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:28,432 INFO L93 Difference]: Finished difference Result 4299 states and 6579 transitions. [2020-10-14 02:40:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:40:28,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2020-10-14 02:40:28,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:28,451 INFO L225 Difference]: With dead ends: 4299 [2020-10-14 02:40:28,451 INFO L226 Difference]: Without dead ends: 2535 [2020-10-14 02:40:28,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:40:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2535 states. [2020-10-14 02:40:28,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2535 to 2151. [2020-10-14 02:40:28,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2151 states. [2020-10-14 02:40:28,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 3132 transitions. [2020-10-14 02:40:28,530 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 3132 transitions. Word has length 138 [2020-10-14 02:40:28,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:28,531 INFO L479 AbstractCegarLoop]: Abstraction has 2151 states and 3132 transitions. [2020-10-14 02:40:28,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:40:28,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 3132 transitions. [2020-10-14 02:40:28,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-14 02:40:28,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:28,540 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:40:28,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 02:40:28,541 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:28,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:28,541 INFO L82 PathProgramCache]: Analyzing trace with hash 597973738, now seen corresponding path program 1 times [2020-10-14 02:40:28,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:28,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070663783] [2020-10-14 02:40:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:28,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:28,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:28,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:29,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:30,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:33,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:33,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:33,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-14 02:40:33,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 02:40:33,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 02:40:33,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:33,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:33,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:33,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 02:40:33,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 02:40:33,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:33,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:33,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:33,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:33,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:33,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:33,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:40:33,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:33,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:33,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:33,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:33,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:33,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:33,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 02:40:33,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:33,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 02:40:33,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:33,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:33,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 02:40:33,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:33,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 02:40:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:33,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:34,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:34,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-14 02:40:34,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:34,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-14 02:40:34,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:34,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:34,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:40:34,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-14 02:40:34,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:34,424 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 141 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:40:34,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070663783] [2020-10-14 02:40:34,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:34,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:40:34,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890307789] [2020-10-14 02:40:34,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:40:34,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:34,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:40:34,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:40:34,428 INFO L87 Difference]: Start difference. First operand 2151 states and 3132 transitions. Second operand 7 states. [2020-10-14 02:40:37,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:37,110 INFO L93 Difference]: Finished difference Result 5714 states and 8692 transitions. [2020-10-14 02:40:37,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:40:37,116 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 269 [2020-10-14 02:40:37,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:37,139 INFO L225 Difference]: With dead ends: 5714 [2020-10-14 02:40:37,139 INFO L226 Difference]: Without dead ends: 3569 [2020-10-14 02:40:37,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:40:37,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3569 states. [2020-10-14 02:40:37,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3569 to 2371. [2020-10-14 02:40:37,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2371 states. [2020-10-14 02:40:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3225 transitions. [2020-10-14 02:40:37,236 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3225 transitions. Word has length 269 [2020-10-14 02:40:37,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:37,237 INFO L479 AbstractCegarLoop]: Abstraction has 2371 states and 3225 transitions. [2020-10-14 02:40:37,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:40:37,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3225 transitions. [2020-10-14 02:40:37,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-14 02:40:37,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:37,244 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:40:37,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 02:40:37,244 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:37,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:37,245 INFO L82 PathProgramCache]: Analyzing trace with hash -575743266, now seen corresponding path program 1 times [2020-10-14 02:40:37,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:37,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938789868] [2020-10-14 02:40:37,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:37,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:37,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:38,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:38,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:38,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-14 02:40:38,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:40:38,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1504 [2020-10-14 02:40:38,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:38,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:38,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:40:38,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:40:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 02:40:38,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 02:40:38,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:38,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:38,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:38,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:38,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:38,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 02:40:38,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:38,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:40:38,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:38,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:38,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:39,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:39,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 02:40:39,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:39,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 02:40:39,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:39,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:39,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:39,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:40:39,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 02:40:39,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:39,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 02:40:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:39,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:39,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:39,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:40:39,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:39,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 02:40:39,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:39,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:39,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:39,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:40:39,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:39,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:39,398 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 72 proven. 84 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 02:40:39,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938789868] [2020-10-14 02:40:39,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:39,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:40:39,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539820191] [2020-10-14 02:40:39,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:40:39,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:39,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:40:39,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:40:39,401 INFO L87 Difference]: Start difference. First operand 2371 states and 3225 transitions. Second operand 7 states. [2020-10-14 02:40:41,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:41,894 INFO L93 Difference]: Finished difference Result 5070 states and 7456 transitions. [2020-10-14 02:40:41,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:40:41,896 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 276 [2020-10-14 02:40:41,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:41,912 INFO L225 Difference]: With dead ends: 5070 [2020-10-14 02:40:41,912 INFO L226 Difference]: Without dead ends: 2705 [2020-10-14 02:40:41,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:40:41,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2020-10-14 02:40:42,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2382. [2020-10-14 02:40:42,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2382 states. [2020-10-14 02:40:42,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3263 transitions. [2020-10-14 02:40:42,010 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3263 transitions. Word has length 276 [2020-10-14 02:40:42,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:42,010 INFO L479 AbstractCegarLoop]: Abstraction has 2382 states and 3263 transitions. [2020-10-14 02:40:42,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:40:42,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3263 transitions. [2020-10-14 02:40:42,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-14 02:40:42,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:42,017 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:40:42,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 02:40:42,017 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:42,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:42,018 INFO L82 PathProgramCache]: Analyzing trace with hash 817021350, now seen corresponding path program 1 times [2020-10-14 02:40:42,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:42,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703517561] [2020-10-14 02:40:42,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:42,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:42,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:43,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:45,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:45,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-14 02:40:45,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:40:45,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3145 [2020-10-14 02:40:45,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:45,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 02:40:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-14 02:40:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 02:40:45,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:45,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:45,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:45,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:45,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:45,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:45,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:40:45,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:45,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:45,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:45,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:45,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:45,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:45,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 02:40:45,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:45,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 02:40:45,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:45,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 02:40:45,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:45,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 02:40:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:45,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:45,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:45,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:40:45,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 02:40:45,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:45,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 02:40:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:40:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 02:40:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:46,030 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 144 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:40:46,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703517561] [2020-10-14 02:40:46,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:46,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 02:40:46,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138764042] [2020-10-14 02:40:46,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 02:40:46,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:46,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 02:40:46,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:40:46,034 INFO L87 Difference]: Start difference. First operand 2382 states and 3263 transitions. Second operand 8 states. [2020-10-14 02:40:50,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:50,462 INFO L93 Difference]: Finished difference Result 7779 states and 11208 transitions. [2020-10-14 02:40:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 02:40:50,463 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 296 [2020-10-14 02:40:50,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:50,490 INFO L225 Difference]: With dead ends: 7779 [2020-10-14 02:40:50,490 INFO L226 Difference]: Without dead ends: 5591 [2020-10-14 02:40:50,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-14 02:40:50,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5591 states. [2020-10-14 02:40:50,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5591 to 4909. [2020-10-14 02:40:50,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4909 states. [2020-10-14 02:40:50,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4909 states to 4909 states and 6555 transitions. [2020-10-14 02:40:50,628 INFO L78 Accepts]: Start accepts. Automaton has 4909 states and 6555 transitions. Word has length 296 [2020-10-14 02:40:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:50,629 INFO L479 AbstractCegarLoop]: Abstraction has 4909 states and 6555 transitions. [2020-10-14 02:40:50,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 02:40:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 4909 states and 6555 transitions. [2020-10-14 02:40:50,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2020-10-14 02:40:50,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:50,648 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:40:50,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 02:40:50,649 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:50,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:50,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1058961030, now seen corresponding path program 1 times [2020-10-14 02:40:50,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:50,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322324670] [2020-10-14 02:40:50,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:50,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:50,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:52,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:53,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:55,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:55,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 455 [2020-10-14 02:40:55,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:40:55,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 02:40:55,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:55,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-14 02:40:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 02:40:55,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:55,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:55,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:55,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:55,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:55,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:55,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:40:55,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:55,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:55,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:55,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:55,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:55,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:55,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:55,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:56,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:56,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:40:56,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:56,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-14 02:40:56,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:56,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 02:40:56,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:56,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-14 02:40:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:56,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:56,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:56,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 02:40:56,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:56,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 02:40:56,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:56,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:56,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:56,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:40:56,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 02:40:56,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:56,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-14 02:40:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:56,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:56,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:56,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:40:56,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:56,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 02:40:56,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:56,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:40:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 198 proven. 88 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 02:40:56,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322324670] [2020-10-14 02:40:56,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:56,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:40:56,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800233025] [2020-10-14 02:40:56,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:40:56,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:56,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:40:56,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:40:56,744 INFO L87 Difference]: Start difference. First operand 4909 states and 6555 transitions. Second operand 7 states. [2020-10-14 02:41:00,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:00,407 INFO L93 Difference]: Finished difference Result 12338 states and 17676 transitions. [2020-10-14 02:41:00,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:41:00,408 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 441 [2020-10-14 02:41:00,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:00,453 INFO L225 Difference]: With dead ends: 12338 [2020-10-14 02:41:00,454 INFO L226 Difference]: Without dead ends: 7625 [2020-10-14 02:41:00,466 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 02:41:00,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7625 states. [2020-10-14 02:41:00,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7625 to 7465. [2020-10-14 02:41:00,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7465 states. [2020-10-14 02:41:00,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7465 states to 7465 states and 9499 transitions. [2020-10-14 02:41:00,674 INFO L78 Accepts]: Start accepts. Automaton has 7465 states and 9499 transitions. Word has length 441 [2020-10-14 02:41:00,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:00,675 INFO L479 AbstractCegarLoop]: Abstraction has 7465 states and 9499 transitions. [2020-10-14 02:41:00,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:00,676 INFO L276 IsEmpty]: Start isEmpty. Operand 7465 states and 9499 transitions. [2020-10-14 02:41:00,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2020-10-14 02:41:00,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:00,700 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:00,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 02:41:00,700 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:00,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:00,701 INFO L82 PathProgramCache]: Analyzing trace with hash -390483854, now seen corresponding path program 1 times [2020-10-14 02:41:00,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:00,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604161828] [2020-10-14 02:41:00,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:00,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:01,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:02,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:05,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:05,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 461 [2020-10-14 02:41:05,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:41:05,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4381 [2020-10-14 02:41:05,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:05,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:41:05,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:41:05,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 02:41:05,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:05,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:05,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:05,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:05,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:05,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:05,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:41:05,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:05,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:05,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:05,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:05,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:41:05,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:41:05,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:05,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:05,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:05,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:41:05,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:05,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 02:41:05,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:05,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:41:05,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:05,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-14 02:41:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:05,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:05,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:05,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:41:05,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:05,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 02:41:05,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:05,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:05,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:05,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:41:05,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:05,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:41:05,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-10-14 02:41:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:05,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:05,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:05,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:41:05,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:05,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 02:41:05,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:05,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:41:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:05,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 108 proven. 229 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-14 02:41:06,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604161828] [2020-10-14 02:41:06,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:06,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:06,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580496694] [2020-10-14 02:41:06,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:06,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:06,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:06,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:06,003 INFO L87 Difference]: Start difference. First operand 7465 states and 9499 transitions. Second operand 7 states. [2020-10-14 02:41:08,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:08,392 INFO L93 Difference]: Finished difference Result 14939 states and 19144 transitions. [2020-10-14 02:41:08,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:41:08,393 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 447 [2020-10-14 02:41:08,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:08,417 INFO L225 Difference]: With dead ends: 14939 [2020-10-14 02:41:08,417 INFO L226 Difference]: Without dead ends: 7858 [2020-10-14 02:41:08,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:41:08,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7858 states. [2020-10-14 02:41:08,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7858 to 7267. [2020-10-14 02:41:08,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7267 states. [2020-10-14 02:41:08,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7267 states to 7267 states and 9281 transitions. [2020-10-14 02:41:08,575 INFO L78 Accepts]: Start accepts. Automaton has 7267 states and 9281 transitions. Word has length 447 [2020-10-14 02:41:08,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:08,575 INFO L479 AbstractCegarLoop]: Abstraction has 7267 states and 9281 transitions. [2020-10-14 02:41:08,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:08,576 INFO L276 IsEmpty]: Start isEmpty. Operand 7267 states and 9281 transitions. [2020-10-14 02:41:08,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2020-10-14 02:41:08,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:08,596 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 02:41:08,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 02:41:08,597 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:08,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:08,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1022008584, now seen corresponding path program 1 times [2020-10-14 02:41:08,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:08,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151327064] [2020-10-14 02:41:08,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:08,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:09,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:09,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:10,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:10,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 490 [2020-10-14 02:41:10,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:41:10,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1905 [2020-10-14 02:41:10,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:10,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:10,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:10,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 281 [2020-10-14 02:41:10,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-14 02:41:10,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:10,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:10,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:10,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:10,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:10,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:10,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:41:10,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:10,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:10,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:10,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:10,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:10,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:10,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:41:10,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:10,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 02:41:10,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:10,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:10,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:10,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:10,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:41:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:10,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:10,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:10,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 02:41:10,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:10,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 02:41:10,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:10,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:10,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:10,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:10,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 02:41:10,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:10,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-14 02:41:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:11,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:11,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:11,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 02:41:11,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:11,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 02:41:11,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:11,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 02:41:11,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-14 02:41:11,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151327064] [2020-10-14 02:41:11,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:11,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:11,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359645854] [2020-10-14 02:41:11,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:11,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:11,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:11,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:11,311 INFO L87 Difference]: Start difference. First operand 7267 states and 9281 transitions. Second operand 7 states. [2020-10-14 02:41:15,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:15,586 INFO L93 Difference]: Finished difference Result 18150 states and 24216 transitions. [2020-10-14 02:41:15,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:41:15,587 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 476 [2020-10-14 02:41:15,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:15,622 INFO L225 Difference]: With dead ends: 18150 [2020-10-14 02:41:15,622 INFO L226 Difference]: Without dead ends: 10889 [2020-10-14 02:41:15,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:41:15,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10889 states. [2020-10-14 02:41:15,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10889 to 10861. [2020-10-14 02:41:15,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10861 states. [2020-10-14 02:41:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10861 states to 10861 states and 14201 transitions. [2020-10-14 02:41:15,924 INFO L78 Accepts]: Start accepts. Automaton has 10861 states and 14201 transitions. Word has length 476 [2020-10-14 02:41:15,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:15,925 INFO L479 AbstractCegarLoop]: Abstraction has 10861 states and 14201 transitions. [2020-10-14 02:41:15,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:15,925 INFO L276 IsEmpty]: Start isEmpty. Operand 10861 states and 14201 transitions. [2020-10-14 02:41:15,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2020-10-14 02:41:15,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:15,976 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:15,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 02:41:15,976 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:15,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:15,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1539506766, now seen corresponding path program 1 times [2020-10-14 02:41:15,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:15,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364601315] [2020-10-14 02:41:15,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:16,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:16,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:16,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:17,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:19,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:21,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:21,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 535 [2020-10-14 02:41:21,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:41:21,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-14 02:41:21,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:21,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:21,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:21,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 02:41:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 02:41:21,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:41:21,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:21,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:21,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:21,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:21,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:21,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:41:21,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:21,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:21,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:21,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:21,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:21,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:21,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:21,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:21,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:21,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 02:41:21,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:21,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 02:41:21,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:21,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 02:41:21,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:21,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 02:41:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:21,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:21,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:21,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:41:21,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:21,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 02:41:21,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:21,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:21,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:21,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:21,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:41:21,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:21,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-10-14 02:41:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:21,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:21,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:21,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:41:21,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:21,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 02:41:21,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:21,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:21,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:21,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:41:21,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:21,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:21,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-14 02:41:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:21,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:21,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:21,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:41:21,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:21,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 02:41:21,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:21,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:41:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:21,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 221 proven. 235 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-10-14 02:41:22,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364601315] [2020-10-14 02:41:22,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:22,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:22,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994717131] [2020-10-14 02:41:22,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:22,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:22,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:22,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:22,064 INFO L87 Difference]: Start difference. First operand 10861 states and 14201 transitions. Second operand 7 states. [2020-10-14 02:41:25,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:25,650 INFO L93 Difference]: Finished difference Result 23707 states and 31003 transitions. [2020-10-14 02:41:25,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:41:25,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 519 [2020-10-14 02:41:25,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:25,696 INFO L225 Difference]: With dead ends: 23707 [2020-10-14 02:41:25,696 INFO L226 Difference]: Without dead ends: 12456 [2020-10-14 02:41:25,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 02:41:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12456 states. [2020-10-14 02:41:26,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12456 to 12426. [2020-10-14 02:41:26,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12426 states. [2020-10-14 02:41:26,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12426 states to 12426 states and 16046 transitions. [2020-10-14 02:41:26,056 INFO L78 Accepts]: Start accepts. Automaton has 12426 states and 16046 transitions. Word has length 519 [2020-10-14 02:41:26,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:26,058 INFO L479 AbstractCegarLoop]: Abstraction has 12426 states and 16046 transitions. [2020-10-14 02:41:26,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:26,058 INFO L276 IsEmpty]: Start isEmpty. Operand 12426 states and 16046 transitions. [2020-10-14 02:41:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2020-10-14 02:41:26,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:26,106 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:26,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 02:41:26,106 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:26,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:26,107 INFO L82 PathProgramCache]: Analyzing trace with hash -80064333, now seen corresponding path program 1 times [2020-10-14 02:41:26,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:26,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484124830] [2020-10-14 02:41:26,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:26,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:26,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:27,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:29,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:29,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:30,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:31,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:31,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 552 [2020-10-14 02:41:31,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 02:41:31,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 02:41:31,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:31,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:31,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:31,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 02:41:31,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 02:41:31,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:31,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:31,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:31,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:31,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:31,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:31,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:41:31,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:31,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:31,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:31,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:31,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:31,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:31,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:31,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:41:31,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:31,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 02:41:31,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:31,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:41:31,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:31,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:41:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:31,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:31,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:31,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:41:31,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:31,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 02:41:31,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:31,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:31,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:31,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:31,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 02:41:31,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:31,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-14 02:41:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:31,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:31,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:31,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:41:31,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:31,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 02:41:31,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:31,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:31,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:31,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 02:41:31,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:31,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:31,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2020-10-14 02:41:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:31,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:31,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:31,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-14 02:41:31,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:31,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 02:41:31,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:31,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:31,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:31,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-14 02:41:31,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:31,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:31,858 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 235 proven. 168 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2020-10-14 02:41:31,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484124830] [2020-10-14 02:41:31,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:31,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:31,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981837274] [2020-10-14 02:41:31,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:31,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:31,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:31,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:31,860 INFO L87 Difference]: Start difference. First operand 12426 states and 16046 transitions. Second operand 7 states. [2020-10-14 02:41:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:34,965 INFO L93 Difference]: Finished difference Result 27629 states and 36205 transitions. [2020-10-14 02:41:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:41:34,966 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 536 [2020-10-14 02:41:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:35,020 INFO L225 Difference]: With dead ends: 27629 [2020-10-14 02:41:35,020 INFO L226 Difference]: Without dead ends: 15401 [2020-10-14 02:41:35,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 02:41:35,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15401 states. [2020-10-14 02:41:35,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15401 to 15183. [2020-10-14 02:41:35,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15183 states. [2020-10-14 02:41:35,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15183 states to 15183 states and 19798 transitions. [2020-10-14 02:41:35,426 INFO L78 Accepts]: Start accepts. Automaton has 15183 states and 19798 transitions. Word has length 536 [2020-10-14 02:41:35,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:35,426 INFO L479 AbstractCegarLoop]: Abstraction has 15183 states and 19798 transitions. [2020-10-14 02:41:35,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:35,427 INFO L276 IsEmpty]: Start isEmpty. Operand 15183 states and 19798 transitions. [2020-10-14 02:41:35,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2020-10-14 02:41:35,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:35,462 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:35,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 02:41:35,462 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:35,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:35,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1889363521, now seen corresponding path program 1 times [2020-10-14 02:41:35,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:35,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556022817] [2020-10-14 02:41:35,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:35,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:36,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:36,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:36,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:36,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:37,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:38,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:40,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:40,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 562 [2020-10-14 02:41:40,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 02:41:40,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 02:41:40,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:40,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 519 [2020-10-14 02:41:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 02:41:40,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:40,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:40,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:40,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:40,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:40,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:40,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:41:40,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:40,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:40,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:40,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:40,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:40,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:40,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:40,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:40,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:40,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:41:40,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:40,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 02:41:40,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:40,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:40,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:40,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:41:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:40,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:40,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:40,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:41:40,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:40,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 02:41:40,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:40,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:40,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:40,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 02:41:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:40,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:40,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:40,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:41:40,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:40,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:41:40,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:40,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:40,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:40,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:40,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:40,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:40,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-14 02:41:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:40,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:41,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:41,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-14 02:41:41,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:41,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 02:41:41,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:41,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:41,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:41,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:41,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-14 02:41:41,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 149 proven. 4 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2020-10-14 02:41:41,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556022817] [2020-10-14 02:41:41,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:41,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:41:41,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232169839] [2020-10-14 02:41:41,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:41:41,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:41,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:41:41,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:41:41,160 INFO L87 Difference]: Start difference. First operand 15183 states and 19798 transitions. Second operand 5 states. [2020-10-14 02:41:43,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:43,708 INFO L93 Difference]: Finished difference Result 32500 states and 42696 transitions. [2020-10-14 02:41:43,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:41:43,709 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 546 [2020-10-14 02:41:43,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:43,763 INFO L225 Difference]: With dead ends: 32500 [2020-10-14 02:41:43,764 INFO L226 Difference]: Without dead ends: 17314 [2020-10-14 02:41:43,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:41:43,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17314 states. [2020-10-14 02:41:44,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17314 to 16526. [2020-10-14 02:41:44,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16526 states. [2020-10-14 02:41:44,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16526 states to 16526 states and 21213 transitions. [2020-10-14 02:41:44,251 INFO L78 Accepts]: Start accepts. Automaton has 16526 states and 21213 transitions. Word has length 546 [2020-10-14 02:41:44,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:44,252 INFO L479 AbstractCegarLoop]: Abstraction has 16526 states and 21213 transitions. [2020-10-14 02:41:44,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:41:44,252 INFO L276 IsEmpty]: Start isEmpty. Operand 16526 states and 21213 transitions. [2020-10-14 02:41:44,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2020-10-14 02:41:44,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:44,296 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 02:41:44,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 02:41:44,296 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:44,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:44,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1399138957, now seen corresponding path program 1 times [2020-10-14 02:41:44,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:44,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089361259] [2020-10-14 02:41:44,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:44,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:44,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:44,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:49,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:49,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 567 [2020-10-14 02:41:49,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:41:49,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 02:41:49,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:49,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:49,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:49,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-10-14 02:41:49,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 02:41:49,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:49,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:49,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:49,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:49,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:49,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:49,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:41:49,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:49,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:49,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:49,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:49,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:49,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:41:49,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:49,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:49,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:49,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 02:41:49,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 02:41:49,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:49,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 02:41:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:49,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-14 02:41:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:49,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:49,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:49,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 02:41:49,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:49,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 02:41:49,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:49,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:49,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:49,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:49,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 02:41:49,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:49,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2020-10-14 02:41:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:49,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:49,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:49,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 02:41:49,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:49,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:41:49,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:49,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 02:41:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:49,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:49,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-14 02:41:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:49,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:50,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:50,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:41:50,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:50,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 02:41:50,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:50,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:41:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:50,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:50,152 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 269 proven. 205 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2020-10-14 02:41:50,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089361259] [2020-10-14 02:41:50,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:50,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:50,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888781563] [2020-10-14 02:41:50,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:50,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:50,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:50,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:50,154 INFO L87 Difference]: Start difference. First operand 16526 states and 21213 transitions. Second operand 7 states. [2020-10-14 02:41:53,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:53,483 INFO L93 Difference]: Finished difference Result 37181 states and 48755 transitions. [2020-10-14 02:41:53,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:41:53,484 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 551 [2020-10-14 02:41:53,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:53,553 INFO L225 Difference]: With dead ends: 37181 [2020-10-14 02:41:53,554 INFO L226 Difference]: Without dead ends: 20853 [2020-10-14 02:41:53,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:41:53,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20853 states. [2020-10-14 02:41:54,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20853 to 19234. [2020-10-14 02:41:54,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19234 states. [2020-10-14 02:41:54,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19234 states to 19234 states and 24882 transitions. [2020-10-14 02:41:54,076 INFO L78 Accepts]: Start accepts. Automaton has 19234 states and 24882 transitions. Word has length 551 [2020-10-14 02:41:54,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:54,077 INFO L479 AbstractCegarLoop]: Abstraction has 19234 states and 24882 transitions. [2020-10-14 02:41:54,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:54,077 INFO L276 IsEmpty]: Start isEmpty. Operand 19234 states and 24882 transitions. [2020-10-14 02:41:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2020-10-14 02:41:54,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:54,124 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:54,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 02:41:54,125 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:54,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:54,125 INFO L82 PathProgramCache]: Analyzing trace with hash -639705832, now seen corresponding path program 1 times [2020-10-14 02:41:54,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:54,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987015070] [2020-10-14 02:41:54,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:54,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:54,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:55,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:58,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:58,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 579 [2020-10-14 02:41:58,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:41:58,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4462 [2020-10-14 02:41:58,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:58,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:58,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:58,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 02:41:58,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 02:41:58,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:58,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:58,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:58,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:58,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:58,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:58,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:41:58,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:58,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:58,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:58,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:58,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:58,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:58,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:58,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:41:58,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:58,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 02:41:58,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:58,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:41:58,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:58,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:41:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:58,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:59,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:59,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:41:59,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:59,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 02:41:59,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:59,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:59,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:59,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:59,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:41:59,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:59,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2020-10-14 02:41:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:59,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:59,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:59,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:41:59,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:59,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 02:41:59,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:59,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:41:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:59,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:59,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2020-10-14 02:41:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:59,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:59,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:59,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:41:59,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:59,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 02:41:59,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:59,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:59,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:59,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:41:59,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:59,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:59,619 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 265 proven. 235 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2020-10-14 02:41:59,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987015070] [2020-10-14 02:41:59,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:59,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:59,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301314292] [2020-10-14 02:41:59,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:59,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:59,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:59,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:59,621 INFO L87 Difference]: Start difference. First operand 19234 states and 24882 transitions. Second operand 7 states. [2020-10-14 02:42:02,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:42:02,962 INFO L93 Difference]: Finished difference Result 39262 states and 50875 transitions. [2020-10-14 02:42:02,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 02:42:02,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 563 [2020-10-14 02:42:02,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:42:03,025 INFO L225 Difference]: With dead ends: 39262 [2020-10-14 02:42:03,025 INFO L226 Difference]: Without dead ends: 20018 [2020-10-14 02:42:03,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 02:42:03,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20018 states. [2020-10-14 02:42:03,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20018 to 20002. [2020-10-14 02:42:03,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20002 states. [2020-10-14 02:42:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20002 states to 20002 states and 25588 transitions. [2020-10-14 02:42:03,509 INFO L78 Accepts]: Start accepts. Automaton has 20002 states and 25588 transitions. Word has length 563 [2020-10-14 02:42:03,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:42:03,509 INFO L479 AbstractCegarLoop]: Abstraction has 20002 states and 25588 transitions. [2020-10-14 02:42:03,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:42:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 20002 states and 25588 transitions. [2020-10-14 02:42:03,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2020-10-14 02:42:03,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:42:03,553 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 02:42:03,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 02:42:03,553 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:42:03,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:42:03,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1544426826, now seen corresponding path program 1 times [2020-10-14 02:42:03,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:42:03,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331110888] [2020-10-14 02:42:03,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:42:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:03,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:04,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:04,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:07,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:07,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 594 [2020-10-14 02:42:07,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:42:07,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4127 [2020-10-14 02:42:07,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:07,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 02:42:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-14 02:42:07,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:07,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:42:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:07,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:07,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:07,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:42:07,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:07,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:42:07,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:07,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:07,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:07,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:07,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:07,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:07,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:42:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:07,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:07,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:07,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:42:07,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:07,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 02:42:07,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:07,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:42:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 02:42:07,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:07,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:42:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:08,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:08,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:08,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:42:08,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:08,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 02:42:08,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:08,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:08,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:08,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:42:08,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:42:08,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:08,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2020-10-14 02:42:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:08,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:08,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:08,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:42:08,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:08,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 02:42:08,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:08,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:42:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:08,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:08,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2020-10-14 02:42:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:08,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:08,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:08,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:42:08,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:08,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-14 02:42:08,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:08,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:08,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:08,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:42:08,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:08,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:08,790 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 278 proven. 235 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2020-10-14 02:42:08,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331110888] [2020-10-14 02:42:08,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:42:08,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:42:08,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037684103] [2020-10-14 02:42:08,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:42:08,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:42:08,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:42:08,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:42:08,792 INFO L87 Difference]: Start difference. First operand 20002 states and 25588 transitions. Second operand 7 states. [2020-10-14 02:42:11,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:42:11,539 INFO L93 Difference]: Finished difference Result 41960 states and 53874 transitions. [2020-10-14 02:42:11,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 02:42:11,540 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 578 [2020-10-14 02:42:11,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:42:11,585 INFO L225 Difference]: With dead ends: 41960 [2020-10-14 02:42:11,585 INFO L226 Difference]: Without dead ends: 22340 [2020-10-14 02:42:11,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 02:42:11,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22340 states. [2020-10-14 02:42:11,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22340 to 22122. [2020-10-14 02:42:11,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22122 states. [2020-10-14 02:42:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22122 states to 22122 states and 27848 transitions. [2020-10-14 02:42:12,029 INFO L78 Accepts]: Start accepts. Automaton has 22122 states and 27848 transitions. Word has length 578 [2020-10-14 02:42:12,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:42:12,030 INFO L479 AbstractCegarLoop]: Abstraction has 22122 states and 27848 transitions. [2020-10-14 02:42:12,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:42:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 22122 states and 27848 transitions. [2020-10-14 02:42:12,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2020-10-14 02:42:12,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:42:12,062 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 02:42:12,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 02:42:12,062 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:42:12,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:42:12,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1926367585, now seen corresponding path program 1 times [2020-10-14 02:42:12,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:42:12,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706718442] [2020-10-14 02:42:12,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:42:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:12,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:12,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:13,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:16,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:16,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 610 [2020-10-14 02:42:16,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:42:16,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3917 [2020-10-14 02:42:16,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:16,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-14 02:42:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 02:42:16,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:16,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:42:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:16,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:16,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:16,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:42:16,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:16,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:42:16,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:16,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:16,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:16,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:42:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:16,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:16,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:16,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 02:42:16,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:16,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 02:42:16,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:16,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:16,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:42:16,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:16,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 02:42:16,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:16,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-14 02:42:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:16,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:16,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:16,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:42:16,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:16,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 02:42:16,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:16,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:42:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:42:16,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:16,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-10-14 02:42:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:16,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:16,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:16,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:42:16,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:16,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 02:42:16,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:16,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:16,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:16,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:42:16,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:16,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:16,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2020-10-14 02:42:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:16,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:16,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:16,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:42:16,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:16,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 02:42:16,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:16,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:16,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:16,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:42:16,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:16,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 864 backedges. 296 proven. 235 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2020-10-14 02:42:17,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706718442] [2020-10-14 02:42:17,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:42:17,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:42:17,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067479786] [2020-10-14 02:42:17,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:42:17,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:42:17,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:42:17,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:42:17,147 INFO L87 Difference]: Start difference. First operand 22122 states and 27848 transitions. Second operand 7 states. [2020-10-14 02:42:21,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:42:21,080 INFO L93 Difference]: Finished difference Result 44870 states and 56532 transitions. [2020-10-14 02:42:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:42:21,080 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 594 [2020-10-14 02:42:21,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:42:21,127 INFO L225 Difference]: With dead ends: 44870 [2020-10-14 02:42:21,128 INFO L226 Difference]: Without dead ends: 23130 [2020-10-14 02:42:21,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:42:21,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23130 states. [2020-10-14 02:42:21,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23130 to 22910. [2020-10-14 02:42:21,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22910 states. [2020-10-14 02:42:21,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22910 states to 22910 states and 28752 transitions. [2020-10-14 02:42:21,613 INFO L78 Accepts]: Start accepts. Automaton has 22910 states and 28752 transitions. Word has length 594 [2020-10-14 02:42:21,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:42:21,613 INFO L479 AbstractCegarLoop]: Abstraction has 22910 states and 28752 transitions. [2020-10-14 02:42:21,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:42:21,614 INFO L276 IsEmpty]: Start isEmpty. Operand 22910 states and 28752 transitions. [2020-10-14 02:42:21,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2020-10-14 02:42:21,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:42:21,654 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:42:21,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 02:42:21,655 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:42:21,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:42:21,655 INFO L82 PathProgramCache]: Analyzing trace with hash 2091326910, now seen corresponding path program 1 times [2020-10-14 02:42:21,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:42:21,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145351432] [2020-10-14 02:42:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:42:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:21,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:22,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:22,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:23,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:26,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:26,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 622 [2020-10-14 02:42:26,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:42:26,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 02:42:26,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:26,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:26,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 02:42:26,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:42:26,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 332 [2020-10-14 02:42:26,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:26,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:42:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:26,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:26,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:26,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:42:26,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:26,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:42:26,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:26,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:26,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:42:26,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:42:26,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:26,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:42:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:26,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:26,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:27,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:27,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 02:42:27,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:42:27,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 02:42:27,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:27,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:27,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:42:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 02:42:27,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:27,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-14 02:42:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:27,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:27,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:27,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:42:27,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-14 02:42:27,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:27,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:42:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:42:27,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:27,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2020-10-14 02:42:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:27,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:27,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:27,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:42:27,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:27,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 02:42:27,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:27,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:27,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:27,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:42:27,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:27,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:27,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2020-10-14 02:42:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:27,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:27,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:27,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:42:27,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:27,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 02:42:27,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:27,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:27,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:27,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:42:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:27,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 305 proven. 460 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-14 02:42:28,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145351432] [2020-10-14 02:42:28,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:42:28,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 02:42:28,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271540596] [2020-10-14 02:42:28,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 02:42:28,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:42:28,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 02:42:28,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 02:42:28,018 INFO L87 Difference]: Start difference. First operand 22910 states and 28752 transitions. Second operand 9 states. [2020-10-14 02:42:30,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:42:30,886 INFO L93 Difference]: Finished difference Result 44961 states and 54893 transitions. [2020-10-14 02:42:30,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 02:42:30,887 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 606 [2020-10-14 02:42:30,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:42:30,922 INFO L225 Difference]: With dead ends: 44961 [2020-10-14 02:42:30,922 INFO L226 Difference]: Without dead ends: 22433 [2020-10-14 02:42:30,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-14 02:42:30,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22433 states. [2020-10-14 02:42:31,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22433 to 22027. [2020-10-14 02:42:31,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22027 states. [2020-10-14 02:42:31,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22027 states to 22027 states and 25863 transitions. [2020-10-14 02:42:31,216 INFO L78 Accepts]: Start accepts. Automaton has 22027 states and 25863 transitions. Word has length 606 [2020-10-14 02:42:31,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:42:31,217 INFO L479 AbstractCegarLoop]: Abstraction has 22027 states and 25863 transitions. [2020-10-14 02:42:31,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 02:42:31,217 INFO L276 IsEmpty]: Start isEmpty. Operand 22027 states and 25863 transitions. [2020-10-14 02:42:31,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2020-10-14 02:42:31,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:42:31,236 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-14 02:42:31,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 02:42:31,236 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:42:31,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:42:31,237 INFO L82 PathProgramCache]: Analyzing trace with hash 991067217, now seen corresponding path program 1 times [2020-10-14 02:42:31,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:42:31,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180913952] [2020-10-14 02:42:31,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:42:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:31,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:31,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:32,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:33,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:36,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:36,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 641 [2020-10-14 02:42:36,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:42:36,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 02:42:36,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:36,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:36,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 431 [2020-10-14 02:42:36,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 02:42:36,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:36,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:42:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:36,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:36,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:36,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:42:36,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:36,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:42:36,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:36,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:36,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:36,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:42:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:36,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:36,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:36,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:42:36,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:36,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:42:36,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:36,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:36,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:36,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:42:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:36,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:36,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:36,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:42:36,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:36,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 02:42:36,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:36,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:36,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:36,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 02:42:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:36,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:36,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:36,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:42:36,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:36,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 02:42:36,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:36,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:36,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:36,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:36,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:36,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:42:36,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-10-14 02:42:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:36,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:36,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:36,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:42:36,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:36,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 02:42:36,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:36,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:36,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:42:36,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 02:42:36,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:36,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2020-10-14 02:42:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:36,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:36,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:36,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 02:42:36,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:36,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-14 02:42:36,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:36,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:42:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 02:42:36,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:37,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 597 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-10-14 02:42:37,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180913952] [2020-10-14 02:42:37,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:42:37,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:42:37,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599398170] [2020-10-14 02:42:37,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:42:37,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:42:37,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:42:37,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:42:37,262 INFO L87 Difference]: Start difference. First operand 22027 states and 25863 transitions. Second operand 7 states. [2020-10-14 02:42:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:42:40,501 INFO L93 Difference]: Finished difference Result 45250 states and 53046 transitions. [2020-10-14 02:42:40,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:42:40,502 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 623 [2020-10-14 02:42:40,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:42:40,539 INFO L225 Difference]: With dead ends: 45250 [2020-10-14 02:42:40,540 INFO L226 Difference]: Without dead ends: 23417 [2020-10-14 02:42:40,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 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 02:42:40,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23417 states. [2020-10-14 02:42:40,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23417 to 23375. [2020-10-14 02:42:40,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23375 states. [2020-10-14 02:42:40,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23375 states to 23375 states and 27070 transitions. [2020-10-14 02:42:40,838 INFO L78 Accepts]: Start accepts. Automaton has 23375 states and 27070 transitions. Word has length 623 [2020-10-14 02:42:40,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:42:40,839 INFO L479 AbstractCegarLoop]: Abstraction has 23375 states and 27070 transitions. [2020-10-14 02:42:40,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:42:40,839 INFO L276 IsEmpty]: Start isEmpty. Operand 23375 states and 27070 transitions. [2020-10-14 02:42:40,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2020-10-14 02:42:40,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:42:40,863 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 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] [2020-10-14 02:42:40,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 02:42:40,863 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:42:40,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:42:40,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1827909303, now seen corresponding path program 1 times [2020-10-14 02:42:40,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:42:40,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741644510] [2020-10-14 02:42:40,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:42:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:40,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:41,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:42,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:43,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:43,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 661 [2020-10-14 02:42:43,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:42:43,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2142 [2020-10-14 02:42:43,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:43,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:43,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:43,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 02:42:43,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 02:42:43,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:43,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:42:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:43,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:43,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:43,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:42:43,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:43,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:42:43,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:43,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:43,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:43,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:43,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:43,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:43,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:42:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:43,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:43,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:43,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:42:43,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:43,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 02:42:43,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:43,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:43,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:43,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:42:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:43,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:43,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:43,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:42:43,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:43,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 02:42:43,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:43,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:42:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 02:42:43,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:43,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 02:42:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:43,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:43,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:43,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 02:42:43,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:43,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 02:42:43,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:43,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:43,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:42:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 02:42:43,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:43,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2020-10-14 02:42:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:43,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:43,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:43,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 02:42:43,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:43,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 02:42:43,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:43,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:43,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:43,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 02:42:43,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:43,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:43,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2020-10-14 02:42:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:43,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:43,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:43,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:42:43,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:43,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 02:42:43,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:43,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:42:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:43,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 431 proven. 205 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2020-10-14 02:42:43,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741644510] [2020-10-14 02:42:43,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:42:43,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:42:43,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034538663] [2020-10-14 02:42:43,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:42:43,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:42:43,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:42:43,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:42:43,936 INFO L87 Difference]: Start difference. First operand 23375 states and 27070 transitions. Second operand 7 states. [2020-10-14 02:42:47,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:42:47,095 INFO L93 Difference]: Finished difference Result 49650 states and 57669 transitions. [2020-10-14 02:42:47,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:42:47,096 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 643 [2020-10-14 02:42:47,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:42:47,139 INFO L225 Difference]: With dead ends: 49650 [2020-10-14 02:42:47,139 INFO L226 Difference]: Without dead ends: 26469 [2020-10-14 02:42:47,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:42:47,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26469 states. [2020-10-14 02:42:47,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26469 to 26055. [2020-10-14 02:42:47,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26055 states. [2020-10-14 02:42:47,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26055 states to 26055 states and 29937 transitions. [2020-10-14 02:42:47,458 INFO L78 Accepts]: Start accepts. Automaton has 26055 states and 29937 transitions. Word has length 643 [2020-10-14 02:42:47,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:42:47,458 INFO L479 AbstractCegarLoop]: Abstraction has 26055 states and 29937 transitions. [2020-10-14 02:42:47,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:42:47,459 INFO L276 IsEmpty]: Start isEmpty. Operand 26055 states and 29937 transitions. [2020-10-14 02:42:47,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2020-10-14 02:42:47,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:42:47,477 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:42:47,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 02:42:47,477 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:42:47,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:42:47,478 INFO L82 PathProgramCache]: Analyzing trace with hash 792462000, now seen corresponding path program 1 times [2020-10-14 02:42:47,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:42:47,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748074001] [2020-10-14 02:42:47,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:42:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:47,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:47,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:48,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:49,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:52,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:52,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 665 [2020-10-14 02:42:52,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:42:52,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 02:42:52,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:52,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:52,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 02:42:52,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 02:42:52,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:52,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:42:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:52,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:52,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:52,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:42:52,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:52,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:42:52,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:52,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:52,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:52,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:52,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:52,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:52,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:42:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:52,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:52,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:52,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:42:52,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 02:42:52,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:52,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:52,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:42:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:52,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:52,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:52,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 02:42:52,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:52,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:42:52,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:52,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:52,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:42:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 02:42:52,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:52,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 02:42:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:52,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:52,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:52,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:42:52,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:52,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 02:42:52,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:52,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:52,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:52,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:42:52,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:42:52,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:53,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2020-10-14 02:42:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:53,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:53,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:53,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:42:53,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:53,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 02:42:53,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:53,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:42:53,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:53,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:42:53,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2020-10-14 02:42:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:53,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:53,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:53,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:42:53,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:53,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 02:42:53,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:53,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:53,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:53,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:42:53,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:53,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:53,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 395 proven. 235 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2020-10-14 02:42:53,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748074001] [2020-10-14 02:42:53,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:42:53,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:42:53,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067335872] [2020-10-14 02:42:53,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:42:53,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:42:53,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:42:53,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:42:53,601 INFO L87 Difference]: Start difference. First operand 26055 states and 29937 transitions. Second operand 7 states. [2020-10-14 02:42:57,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:42:57,567 INFO L93 Difference]: Finished difference Result 55328 states and 63640 transitions. [2020-10-14 02:42:57,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:42:57,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 647 [2020-10-14 02:42:57,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:42:57,639 INFO L225 Difference]: With dead ends: 55328 [2020-10-14 02:42:57,640 INFO L226 Difference]: Without dead ends: 29465 [2020-10-14 02:42:57,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:42:57,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29465 states. [2020-10-14 02:42:57,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29465 to 26051. [2020-10-14 02:42:57,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26051 states. [2020-10-14 02:42:57,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26051 states to 26051 states and 29903 transitions. [2020-10-14 02:42:57,995 INFO L78 Accepts]: Start accepts. Automaton has 26051 states and 29903 transitions. Word has length 647 [2020-10-14 02:42:57,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:42:57,995 INFO L479 AbstractCegarLoop]: Abstraction has 26051 states and 29903 transitions. [2020-10-14 02:42:57,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:42:57,996 INFO L276 IsEmpty]: Start isEmpty. Operand 26051 states and 29903 transitions. [2020-10-14 02:42:58,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2020-10-14 02:42:58,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:42:58,015 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:42:58,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 02:42:58,016 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:42:58,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:42:58,016 INFO L82 PathProgramCache]: Analyzing trace with hash 2039727643, now seen corresponding path program 1 times [2020-10-14 02:42:58,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:42:58,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834636990] [2020-10-14 02:42:58,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:42:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:58,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:58,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:00,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:02,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:02,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 670 [2020-10-14 02:43:02,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:43:02,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4476 [2020-10-14 02:43:02,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:02,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:02,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:43:02,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 217 [2020-10-14 02:43:02,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 02:43:02,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:02,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:43:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:02,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:02,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:02,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:43:02,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:02,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:43:02,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:02,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:02,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:02,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:43:02,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:43:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:02,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:02,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:02,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:43:02,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:02,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 02:43:02,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:02,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:02,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:02,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:02,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:02,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:02,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:43:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:02,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:02,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:02,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 02:43:02,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:02,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 02:43:02,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:02,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:02,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:43:02,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:02,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 02:43:02,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:02,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-10-14 02:43:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:02,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:03,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:03,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:43:03,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:03,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-14 02:43:03,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:03,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:03,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:43:03,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:43:03,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:43:03,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:03,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2020-10-14 02:43:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:03,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:03,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:03,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:43:03,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:03,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 02:43:03,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:03,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:43:03,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:03,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2020-10-14 02:43:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:03,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:03,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:03,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:43:03,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:03,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 02:43:03,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:03,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:03,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:43:03,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:03,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 400 proven. 235 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2020-10-14 02:43:03,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834636990] [2020-10-14 02:43:03,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:43:03,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:43:03,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128431755] [2020-10-14 02:43:03,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:43:03,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:43:03,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:43:03,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:43:03,796 INFO L87 Difference]: Start difference. First operand 26051 states and 29903 transitions. Second operand 7 states. [2020-10-14 02:43:07,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:43:07,385 INFO L93 Difference]: Finished difference Result 53090 states and 60938 transitions. [2020-10-14 02:43:07,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 02:43:07,387 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 652 [2020-10-14 02:43:07,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:43:07,437 INFO L225 Difference]: With dead ends: 53090 [2020-10-14 02:43:07,437 INFO L226 Difference]: Without dead ends: 27041 [2020-10-14 02:43:07,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 02:43:07,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27041 states. [2020-10-14 02:43:07,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27041 to 26815. [2020-10-14 02:43:07,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26815 states. [2020-10-14 02:43:07,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26815 states to 26815 states and 30683 transitions. [2020-10-14 02:43:07,789 INFO L78 Accepts]: Start accepts. Automaton has 26815 states and 30683 transitions. Word has length 652 [2020-10-14 02:43:07,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:43:07,789 INFO L479 AbstractCegarLoop]: Abstraction has 26815 states and 30683 transitions. [2020-10-14 02:43:07,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:43:07,789 INFO L276 IsEmpty]: Start isEmpty. Operand 26815 states and 30683 transitions. [2020-10-14 02:43:07,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2020-10-14 02:43:07,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:43:07,810 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 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 02:43:07,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 02:43:07,810 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:43:07,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:43:07,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1504390529, now seen corresponding path program 1 times [2020-10-14 02:43:07,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:43:07,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123425504] [2020-10-14 02:43:07,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:43:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:07,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:08,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:08,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:08,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:08,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:08,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:10,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:10,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:11,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:11,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:12,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:12,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 678 [2020-10-14 02:43:12,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 02:43:12,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4144 [2020-10-14 02:43:12,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:12,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:12,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:43:12,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 02:43:12,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 376 [2020-10-14 02:43:12,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:12,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:43:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:12,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:12,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:12,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:43:12,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:12,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:43:12,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:12,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:12,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:12,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:12,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:12,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:12,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:43:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:12,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:12,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:12,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:43:12,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:12,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:43:12,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:12,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:12,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:12,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:12,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:12,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:12,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:43:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:12,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:12,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:12,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:12,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 02:43:12,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:43:12,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-14 02:43:12,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:12,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:43:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-14 02:43:12,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:12,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-10-14 02:43:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:12,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:12,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:12,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:12,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:43:12,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:43:12,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 02:43:12,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:12,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:12,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:43:12,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:12,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 02:43:12,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:12,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2020-10-14 02:43:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:12,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:12,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:12,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:12,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:43:12,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:43:12,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 02:43:12,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:12,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:12,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:43:12,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:12,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 02:43:12,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:12,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2020-10-14 02:43:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:12,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:12,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:12,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:12,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:43:12,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:43:12,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 02:43:12,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:12,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:43:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 02:43:12,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:12,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 190 proven. 11 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2020-10-14 02:43:12,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123425504] [2020-10-14 02:43:12,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:43:12,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:43:12,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747669725] [2020-10-14 02:43:12,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:43:12,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:43:12,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:43:12,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:43:12,894 INFO L87 Difference]: Start difference. First operand 26815 states and 30683 transitions. Second operand 5 states. [2020-10-14 02:43:15,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:43:15,630 INFO L93 Difference]: Finished difference Result 54404 states and 62295 transitions. [2020-10-14 02:43:15,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:43:15,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 660 [2020-10-14 02:43:15,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:43:15,673 INFO L225 Difference]: With dead ends: 54404 [2020-10-14 02:43:15,673 INFO L226 Difference]: Without dead ends: 25681 [2020-10-14 02:43:15,687 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 02:43:15,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25681 states. [2020-10-14 02:43:15,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25681 to 25647. [2020-10-14 02:43:15,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25647 states. [2020-10-14 02:43:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25647 states to 25647 states and 29263 transitions. [2020-10-14 02:43:15,980 INFO L78 Accepts]: Start accepts. Automaton has 25647 states and 29263 transitions. Word has length 660 [2020-10-14 02:43:15,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:43:15,981 INFO L479 AbstractCegarLoop]: Abstraction has 25647 states and 29263 transitions. [2020-10-14 02:43:15,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:43:15,981 INFO L276 IsEmpty]: Start isEmpty. Operand 25647 states and 29263 transitions. [2020-10-14 02:43:16,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2020-10-14 02:43:16,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:43:16,001 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:16,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 02:43:16,001 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:43:16,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:43:16,001 INFO L82 PathProgramCache]: Analyzing trace with hash -750368563, now seen corresponding path program 1 times [2020-10-14 02:43:16,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:43:16,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060811124] [2020-10-14 02:43:16,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:43:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:16,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:16,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:17,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:17,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:21,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:21,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 687 [2020-10-14 02:43:21,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:43:21,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 02:43:21,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:21,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:43:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-14 02:43:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 02:43:21,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:21,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:43:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:21,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:21,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:21,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:43:21,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:21,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:43:21,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:21,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:21,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:21,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:21,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:21,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:21,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:43:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:21,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:21,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:21,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:43:21,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:21,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:43:21,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:21,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:21,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:21,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:43:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:21,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:21,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:21,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 02:43:21,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:21,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 02:43:21,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:21,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:43:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 02:43:21,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:21,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-14 02:43:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:21,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:21,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:21,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:43:21,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:21,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 02:43:21,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:21,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:21,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:43:21,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:43:21,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:43:21,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:21,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2020-10-14 02:43:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:21,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:21,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:21,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:43:21,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:21,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 02:43:21,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:21,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:43:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:21,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:21,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2020-10-14 02:43:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:21,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:21,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:21,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:43:21,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:21,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 02:43:21,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:21,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:21,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:21,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:43:21,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:21,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1231 backedges. 415 proven. 235 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2020-10-14 02:43:22,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060811124] [2020-10-14 02:43:22,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:43:22,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:43:22,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151728344] [2020-10-14 02:43:22,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:43:22,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:43:22,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:43:22,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:43:22,535 INFO L87 Difference]: Start difference. First operand 25647 states and 29263 transitions. Second operand 7 states. [2020-10-14 02:43:25,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:43:25,781 INFO L93 Difference]: Finished difference Result 51414 states and 58932 transitions. [2020-10-14 02:43:25,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 02:43:25,782 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 669 [2020-10-14 02:43:25,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:43:25,825 INFO L225 Difference]: With dead ends: 51414 [2020-10-14 02:43:25,826 INFO L226 Difference]: Without dead ends: 24817 [2020-10-14 02:43:25,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:43:25,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24817 states. [2020-10-14 02:43:26,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24817 to 24311. [2020-10-14 02:43:26,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24311 states. [2020-10-14 02:43:26,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24311 states to 24311 states and 27715 transitions. [2020-10-14 02:43:26,141 INFO L78 Accepts]: Start accepts. Automaton has 24311 states and 27715 transitions. Word has length 669 [2020-10-14 02:43:26,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:43:26,141 INFO L479 AbstractCegarLoop]: Abstraction has 24311 states and 27715 transitions. [2020-10-14 02:43:26,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:43:26,141 INFO L276 IsEmpty]: Start isEmpty. Operand 24311 states and 27715 transitions. [2020-10-14 02:43:26,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2020-10-14 02:43:26,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:43:26,160 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:26,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 02:43:26,160 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:43:26,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:43:26,160 INFO L82 PathProgramCache]: Analyzing trace with hash -800844577, now seen corresponding path program 1 times [2020-10-14 02:43:26,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:43:26,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852326687] [2020-10-14 02:43:26,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:43:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:26,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:26,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:27,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:28,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:31,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:31,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 692 [2020-10-14 02:43:31,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:43:31,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4875 [2020-10-14 02:43:31,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:31,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:43:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 02:43:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 02:43:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:31,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:43:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:31,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:31,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:31,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:43:31,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:31,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:43:31,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:31,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:31,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:31,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:31,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:31,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:31,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:43:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:31,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:31,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:31,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:43:31,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:31,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 02:43:31,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:31,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:31,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:31,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:31,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:31,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:31,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:43:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:31,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:31,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:31,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 02:43:31,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:31,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 02:43:31,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:31,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:31,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:43:31,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:31,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 02:43:31,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:31,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-14 02:43:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:31,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:31,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:31,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:43:31,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:31,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 02:43:31,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:31,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:31,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:43:31,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:43:31,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:43:31,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:31,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2020-10-14 02:43:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:31,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:31,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:31,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:43:31,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 02:43:31,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:31,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:43:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:31,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2020-10-14 02:43:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:31,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:31,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:31,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:43:31,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:31,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 02:43:31,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:31,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:43:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:31,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 422 proven. 235 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2020-10-14 02:43:32,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852326687] [2020-10-14 02:43:32,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:43:32,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:43:32,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586859347] [2020-10-14 02:43:32,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:43:32,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:43:32,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:43:32,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:43:32,085 INFO L87 Difference]: Start difference. First operand 24311 states and 27715 transitions. Second operand 7 states. [2020-10-14 02:43:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:43:36,836 INFO L93 Difference]: Finished difference Result 52402 states and 59883 transitions. [2020-10-14 02:43:36,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 02:43:36,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 674 [2020-10-14 02:43:36,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:43:36,886 INFO L225 Difference]: With dead ends: 52402 [2020-10-14 02:43:36,886 INFO L226 Difference]: Without dead ends: 26543 [2020-10-14 02:43:36,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:43:36,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26543 states. [2020-10-14 02:43:37,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26543 to 22559. [2020-10-14 02:43:37,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22559 states. [2020-10-14 02:43:37,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22559 states to 22559 states and 25497 transitions. [2020-10-14 02:43:37,207 INFO L78 Accepts]: Start accepts. Automaton has 22559 states and 25497 transitions. Word has length 674 [2020-10-14 02:43:37,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:43:37,208 INFO L479 AbstractCegarLoop]: Abstraction has 22559 states and 25497 transitions. [2020-10-14 02:43:37,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:43:37,208 INFO L276 IsEmpty]: Start isEmpty. Operand 22559 states and 25497 transitions. [2020-10-14 02:43:37,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2020-10-14 02:43:37,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:43:37,226 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:43:37,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 02:43:37,226 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:43:37,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:43:37,227 INFO L82 PathProgramCache]: Analyzing trace with hash -53370590, now seen corresponding path program 1 times [2020-10-14 02:43:37,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:43:37,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347329912] [2020-10-14 02:43:37,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:43:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:37,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:37,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:40,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:42,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:42,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 699 [2020-10-14 02:43:42,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:43:42,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-14 02:43:42,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:42,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:42,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:43:42,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 246 [2020-10-14 02:43:42,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 02:43:42,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:42,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:43:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:42,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:42,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:42,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:43:42,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:42,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:43:42,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:42,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:42,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:42,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:43:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:42,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:42,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:42,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:43:42,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:42,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 02:43:42,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:42,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:42,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:42,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:43:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:42,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:42,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:42,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 02:43:42,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:42,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 02:43:42,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:42,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:42,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:43:42,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:42,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:43:42,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:42,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-14 02:43:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:42,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:42,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:42,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 02:43:42,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:42,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 02:43:42,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:42,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:43:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:43:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:43:42,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:43,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2020-10-14 02:43:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:43,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:43,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:43,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:43:43,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:43,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 02:43:43,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:43,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:43,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:43,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:43:43,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:43,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:43,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2020-10-14 02:43:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:43,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:43,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:43,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:43:43,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:43,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 02:43:43,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:43,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:43,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:43,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:43:43,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:43,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:43,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 429 proven. 235 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2020-10-14 02:43:43,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347329912] [2020-10-14 02:43:43,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:43:43,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:43:43,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649973035] [2020-10-14 02:43:43,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:43:43,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:43:43,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:43:43,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:43:43,430 INFO L87 Difference]: Start difference. First operand 22559 states and 25497 transitions. Second operand 7 states. [2020-10-14 02:43:46,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:43:46,691 INFO L93 Difference]: Finished difference Result 47034 states and 53379 transitions. [2020-10-14 02:43:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:43:46,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 681 [2020-10-14 02:43:46,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:43:46,734 INFO L225 Difference]: With dead ends: 47034 [2020-10-14 02:43:46,734 INFO L226 Difference]: Without dead ends: 24859 [2020-10-14 02:43:46,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 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 02:43:46,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24859 states. [2020-10-14 02:43:47,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24859 to 24635. [2020-10-14 02:43:47,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24635 states. [2020-10-14 02:43:47,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24635 states to 24635 states and 27816 transitions. [2020-10-14 02:43:47,039 INFO L78 Accepts]: Start accepts. Automaton has 24635 states and 27816 transitions. Word has length 681 [2020-10-14 02:43:47,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:43:47,039 INFO L479 AbstractCegarLoop]: Abstraction has 24635 states and 27816 transitions. [2020-10-14 02:43:47,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:43:47,039 INFO L276 IsEmpty]: Start isEmpty. Operand 24635 states and 27816 transitions. [2020-10-14 02:43:47,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2020-10-14 02:43:47,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:43:47,057 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:47,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 02:43:47,057 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:43:47,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:43:47,058 INFO L82 PathProgramCache]: Analyzing trace with hash 2041917235, now seen corresponding path program 1 times [2020-10-14 02:43:47,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:43:47,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568031175] [2020-10-14 02:43:47,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:43:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:47,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:47,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:48,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:48,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:48,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 702 [2020-10-14 02:43:48,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:43:48,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1375 [2020-10-14 02:43:48,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:48,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:43:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-14 02:43:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 02:43:48,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:48,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:43:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:48,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:48,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:48,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:43:48,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:48,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:43:48,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:48,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:48,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:48,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:48,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:48,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:48,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:43:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:48,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:48,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:48,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:43:48,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:48,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 02:43:48,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:48,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:48,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:48,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:48,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:48,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:48,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:43:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:48,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:48,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:48,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-14 02:43:48,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:48,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 02:43:48,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:48,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:48,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:48,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:48,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:48,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:48,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-10-14 02:43:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:48,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:48,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:48,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:43:48,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:48,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:43:48,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:48,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:43:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:43:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:43:48,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:48,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 02:43:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:48,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:48,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:48,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 02:43:48,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:48,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 02:43:48,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:48,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:43:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:43:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 02:43:48,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:48,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2020-10-14 02:43:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:43:48,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:43:49,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:43:49,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:43:49,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:43:49,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 02:43:49,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:43:49,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:43:49,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:43:49,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 02:43:49,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:43:49,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:43:49,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 471 proven. 94 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2020-10-14 02:43:49,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568031175] [2020-10-14 02:43:49,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:43:49,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:43:49,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116028864] [2020-10-14 02:43:49,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:43:49,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:43:49,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:43:49,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:43:49,210 INFO L87 Difference]: Start difference. First operand 24635 states and 27816 transitions. Second operand 7 states. [2020-10-14 02:43:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:43:53,485 INFO L93 Difference]: Finished difference Result 53070 states and 59981 transitions. [2020-10-14 02:43:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:43:53,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 684 [2020-10-14 02:43:53,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:43:53,543 INFO L225 Difference]: With dead ends: 53070 [2020-10-14 02:43:53,543 INFO L226 Difference]: Without dead ends: 28819 [2020-10-14 02:43:53,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 02:43:53,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28819 states. [2020-10-14 02:43:53,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28819 to 24643. [2020-10-14 02:43:53,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24643 states. [2020-10-14 02:43:53,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24643 states to 24643 states and 27933 transitions. [2020-10-14 02:43:53,888 INFO L78 Accepts]: Start accepts. Automaton has 24643 states and 27933 transitions. Word has length 684 [2020-10-14 02:43:53,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:43:53,889 INFO L479 AbstractCegarLoop]: Abstraction has 24643 states and 27933 transitions. [2020-10-14 02:43:53,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:43:53,889 INFO L276 IsEmpty]: Start isEmpty. Operand 24643 states and 27933 transitions. [2020-10-14 02:43:53,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2020-10-14 02:43:53,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:43:53,908 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 02:43:53,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 02:43:53,908 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:43:53,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:43:53,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1691466212, now seen corresponding path program 1 times [2020-10-14 02:43:53,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:43:53,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399289911] [2020-10-14 02:43:53,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:43:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat